Permission
Obligation
Prohibition
100

Which modal correctly expresses permission in this sentence?
"________ I use your pen for a moment?"

Hint: polite

Answer: May
100

Which modal expresses strong obligation?
A. can
B. might
C. must
D. may

Answer: C. must

100

Which modal expresses prohibition?
A. should
B. must not
C. ought to
D. may

Answer: B. must not

200

Which sentence correctly expresses permission?
A. You must attend the meeting.
B. You may leave after the program.
C. You cannot enter the room.
D. You should finish your homework.

Answer: B

200

Which sentence correctly expresses obligation?
A. You may skip the assembly.
B. Students must wear their uniform every day.
C. You cannot bring food inside.
D. You could finish the task later.

Answer: B

200

Which sentence correctly expresses prohibition?
A. You should wear your ID.
B. You may enter the library.
C. Students cannot use their phones during class.
D. You ought to listen to your teacher.

Answer: C

300

What is the difference between "can" and "may" when expressing permission?

Answer: "Can" is informal/casual permission; "may" is more formal and polite

300

What is the difference between "must" and "should"?

Answer: "Must" expresses strong/required obligation; "should" expresses mild advice or recommendation

300

Name THREE modals that express prohibition.

Answer: cannot, must not, may not, shall not (any 3 of these)

400

Rewrite this sentence using a different modal of permission without changing the meaning:
"You can borrow my book."

Answer: You may borrow my book.

400

Give one real-life school rule that uses a modal of obligation.

Answer: Use must/shall/should/ought to

400

What is wrong with this sentence?
"You must smoke inside the school campus."

Answer: "Must" express obligation, not prohibition. The correct modal should be "must not" pr "cannot" - "You must not smoke inside the school campus."