Sentence Boundaries
Punctuation Tools
Subject Verb Agreement
ACT traps
Mixed practice
100

What are the 3 parts of a complete sentence?

subject, verb, complete thought

100

What punctuation mark introduces a list after a complete sentence?

Colon

100

Which is correct? The list of supplies (is/are) on the desk.

Is

100

What’s the trick in this sentence? The bouquet of roses are beautiful.

subject = bouquet, singular → should be “is”

100

Which word is the subject? The pack of wolves is howling.

The pack 

200

Fix this run-on: I love pizza it’s my favorite food.

add period, semicolon, or comma + FANBOYS)

200

What’s the rule for using a semicolon? (What does a Semicolon do?)

joins two complete sentences

200

Which is correct? Each of the players (was/were) ready.

Was

200

Why is this wrong? My brother, and sister is here.

“and” makes subject plural → should be “are”

200

Which punctuation is best? The team was nervous __ they had trained all year for this moment.

  • A. ,

  • B. ; 

  • C. :

  • D. —

B. ;

300

Why is this a fragment? Because I was late.

Dependent Clause, incomplete thought
300

Which is correct? I need to pack three things __ my toothbrush, my shoes, and my charger.

  • A. ,

  • B. ;

  • C. : 

  • D. —

C. :

300

Which is correct? Neither the teacher nor the students (is/are) happy.

Are

300

Which is correct? Neither the books nor the pen (is/are) on the desk.

is → closest subject = pen

300

Which is correct? Neither the teacher nor the principal (approve/approves) the new rule.

approves → closest subject = principal, singular

400

Which option fixes this correctly? She studied hard, she earned an A.

  • A. NO CHANGE

  • B. She studied hard, and she earned an A. 

  • C. She studied hard, she was earning an A.

  • D. She studied hard and earned.

B: She studied hard, and she earned an A. 

400

Why is this wrong? She bought apples; and oranges.

semicolon can’t be used with FANBOYS

400

Which is correct? The teacher and the students (was/were) in the meeting.

Were

400

Fix this sentence: The meeting lasted for hours, it covered many topics.

add period, semicolon, or comma + FANBOYS

400

Which option is most concise? Due to the fact that it was raining, we stayed inside.

  • A. Due to the fact that it was raining

  • B. Because it was raining 

  • C. Since it was raining outside, we decided to remain indoors

  • D. Owing to the fact of the rain

B. Because it was raining

500

Identify the error: Although the game was exciting,

fragment → dependent clause without a complete thought

500

Which is correct?

  • A. The teacher gave a speech— it was inspiring.

  • B. The teacher gave a speech; it was inspiring. 

  • C. The teacher gave a speech, it was inspiring.

  • D. The teacher gave a speech: it was inspiring.

B — semicolon correctly joins two sentences. D could work if “explanation,” but ACT prefers semicolon in this case.

500

Which is correct? Neither the players nor the coach (is/are) celebrating yet.

Is

500

Why is this wrong? Running late to school, the backpack felt heavy.

misplaced modifier → makes it sound like the backpack is running

500

Identify and fix the error: The scientists has discovered a new planet.

Subject–verb agreement error → should be “have discovered”