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Run On Sentence Practice (B1-B2) - English Grammar Quiz

⏱ Time: 07:30 📝 Questions: 15 📊 Level: B1, B2 📚 Type: Grammar ⭐ XP: up to +16 (on pass)

7-minute daily practice: 15 Run On Sentence exercises for Level B1-B2. Short enough to fit into a coffee break, thorough enough to make real progress. Covers the most important aspects of run on sentence with instant feedback on every answer.

⏱ You have 07:30 to answer 15 questions. The timer only starts when you click Begin.

Q1  15
Q1 15

Question 1: Which sentence is a run-on sentence?

Question 1 options
'I was tired I went to bed early' is correct because it contains two independent clauses joined with no punctuation or conjunction. The other options either use a period, a semicolon, or a conjunction to correctly separate the clauses.
Q2 15

Question 2: She loves cooking ___ she makes dinner every night.

Question 2 options
'and' is correct because it is a coordinating conjunction that, combined with a comma before it, properly joins two independent clauses. Without a conjunction, the sentence would be a run-on.
Q3 15

Question 3: A run-on sentence is always a very long sentence.

Question 3 options
False because a run-on sentence is defined by the absence of correct punctuation or conjunctions between independent clauses, not by its length. Even a short sentence like 'I ran she fell' is a run-on.
Q4 15

Question 4: Which situation best describes when a run-on sentence occurs?

Question 4 options
A run-on sentence occurs when two independent clauses are joined without correct punctuation or a conjunction. The other options describe correct sentence structures, not errors.
Q5 15

Question 5: Arrange the words to make a correct sentence:

Question 5 options
  • my brother
  • I like music,
  • prefers sports.
  • but

Drag items or use arrows to arrange them in the correct order.

The correct order is 'I like music, but my brother prefers sports' because a comma before a coordinating conjunction correctly joins two independent clauses, avoiding a run-on sentence.
Q6 15

Question 6: Which sentence is grammatically correct?

Question 6 options
'The rain started, so we went inside' is correct because a comma and the coordinating conjunction 'so' properly join the two independent clauses. The other sentences fuse independent clauses without proper punctuation or conjunctions.
Q7 15

Question 7: Student A: 'My essay has this sentence: The film was long, it was very boring.' Student B: 'You need to fix that.' What type of error does the sentence contain? ___

Question 7 options
'A comma splice' is correct because the sentence joins two independent clauses with only a comma and no coordinating conjunction. A comma alone is not sufficient to link two main clauses.
Q8 15

Question 8: Which sentence correctly uses a semicolon to fix a run-on sentence (not a comma splice)?

Question 8 options
'The meeting ended late; everyone left quickly' is correct because a semicolon properly separates two closely related independent clauses without needing a conjunction. A comma splice uses only a comma, which is insufficient.
Q9 15

Question 9: Put the words/clauses in the correct order:

Question 9 options
  • Because she studied hard,
  • the exam.
  • she passed

Drag items or use arrows to arrange them in the correct order.

The correct order is 'Because she studied hard, she passed the exam' because a subordinating conjunction ('Because') at the start of a dependent clause must be followed by a comma before the independent clause, creating a complex sentence and avoiding a run-on.
Q10 15

Question 10: The students were tired ___ they still finished the project on time.

Question 10 options
'; however,' is correct because a semicolon before a transitional expression and a comma after it properly connects two independent clauses. Using only a comma creates a comma splice, and no punctuation at all creates a fused run-on sentence.
Q11 15

Question 11: Which statement about run-on sentences is true?

Question 11 options
Using a period to split a run-on into two sentences is always a valid correction. A comma splice is a specific type of run-on, not a separate unrelated error. A subordinating conjunction creates a dependent clause, which does fix a run-on. Run-on sentences are defined by missing punctuation/conjunctions, not length.
Q12 15

Question 12: Rewrite as one correct sentence using a subordinating conjunction: 'It was raining. We cancelled the picnic.' → ___ it was raining, we cancelled the picnic.

Question 12 options
'Because' is correct because it is a subordinating conjunction that converts the first clause into a dependent clause, properly joining the two ideas into a complex sentence and eliminating the run-on.
Q13 15

Question 13: Match each sentence to the correct grammar label.

Question 13 options
He was hungry he ate the whole pizza.
He was hungry, he ate the whole pizza.
He was hungry, so he ate the whole pizza.
Because he was hungry, he ate the whole pizza.
Correct complex sentence (subordinating conjunction)
Correct compound sentence (comma + conjunction)
Fused run-on sentence (no punctuation)
Comma splice

Select an item on the left, then tap its match on the right.

A fused sentence has no punctuation between clauses; a comma splice uses only a comma; a correct compound sentence uses a comma and coordinating conjunction; a correct complex sentence uses a subordinating conjunction.
Q14 15

Question 14: A comma splice can be fixed by adding a coordinating conjunction after the comma.

Question 14 options
True because adding a coordinating conjunction (such as 'and', 'but', or 'so') after the comma creates a correct compound sentence. The comma alone is insufficient, but a comma followed by a coordinating conjunction properly joins two independent clauses.
Q15 15

Question 15: Which sentence is the most appropriate way to join two closely related ideas in formal writing?

Question 15 options
'The report was delayed; the manager informed the team immediately' uses a semicolon, which signals a close relationship between two independent clauses and suits formal writing. Simply using 'and' is less precise, a comma splice is an error, and no punctuation is a fused run-on.