Present & Future Obligation & Necessity
Which modal verb is used to express strict prohibition or that something is forbidden?
A) Don't have to
B) Must not
C) Wouldn't
D) Shouldn't have
B) Must not
Which pair of modals forms a logical binary for present 100% certainty (TRUE vs. FALSE)?
A) May / Might
B) Must / Can't
C) Should / Shouldn't
D) Will / Won't
B) Must / Can't
What is the correct past form of must when expressing past external obligation?
A) Musted
B) Had to
C) Must have
D) Have had to
B) had to
"The engine _____ start, no matter how hard I tried."
A) wouldn't
B) shouldn't
C) needn't
D) mustn't
A) wouldn't
You bought milk, but your roommate already bought some. Which structure describes this?
A) I didn't need to buy milk.
B) I needn't have bought milk.
C) I mustn't have bought milk.
D) I couldn't buy milk.
B) I needn't have bought milk.
"You _____ bring a laptop; we have computers here."
A) must not
B) don't have to
C) shouldn't have
D) couldn't
B) don't have to
"Guests _____ vacate their rooms by midday."
A) should
B) might
C) could
D) would
A) should
"Look at the wet street; it _____ rained last night."
A) must have
B) had to
C) should have
D) ought to
A) must have
"He _____ won the match if he had trained harder."
A) could have
B) must have
C) had to
D) should
A) could have
You knew tickets were free, so you didn't spend money. Which structure describes this?
A) I needn't have paid.
B) I didn't need to pay.
C) I couldn't have paid.
D) I shouldn't pay.
B) I didn't need to pay.
"_____ you make so much noise late at night?"
A) Need
B) Must to
C) Ought
D) Would
A) Need
"Nobody else is coming, so we _____ go home."
A) had better
B) may as well
C) are bound to
D) would rather
B) may as well
"You _____ seen him; he left hours ago!"
A) mustn't have
B) can't have
C) didn't have to
D) wouldn't have
B) can't have
"You _____ told me you were going to be late!"
A) must have
B) might have
C) had to
D) can't have
B) might have
"That was dangerous! You could _____ have been hurt!"
A) well
B) easily
C) bound
D) likely
B) easily
"You'd _____ not phone her again after what happened."
A) should
B) better
C) rather
D) bound
B) better
"_____ as I might, I could not convince him to come."
A) Trying
B) Try
C) Tried
D) To try
B) Try
"Oh, what a wonderful present! You really _____!"
A) wouldn't have
B) couldn't have
C) shouldn't have
D) didn't need to
C) shouldn't have
"I _____ known he would forget his keys again!"
A) could have
B) should have
C) might have
D) would have
C) might have
"It's late, but I might _____ join you for dinner later."
A) easily
B) well
C) bound
D) surely
B) well
"Look at those dark clouds; it is _____ to rain soon."
A) bound
B) due
C) likely to have
D) supposed
A) bound
"I _____ think that price is a bit steep."
A) should
B) must
C) can
D) shall
A) should
"The mail carrier _____ arrived by now; it's already 3 PM."
A) should have
B) must have
C) had to
D) might
A) should have
"That _____ been Sarah calling earlier, but I'm not sure."
A) would have
B) had to
C) must
D) need to have
A) would have
"Take a coat in case it _____ get cold later."
A) should
B) might
C) would
D) must
A) should