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Correct Answer: D) Should not have called.
Correct Answer: A) Have to-can't.
Correct Answer: D) Cannot.
Correct Answer: A) Must.
Correct Answer: B) Can.
Correct Answer: C) Can't.
Correct Answer: A) May I leave the room?.
Correct Answer: B) He might not have passed the driving test.
Correct Answer: A) Can't.
Correct Answer: D) May.
Correct Answer: B) Will.
Correct Answer: C) May.
Correct Answer: D) Used.
Correct Answer: A) Understand.
Correct Answer: B) Ought to.
Correct Answer: B) Must have dialled.
Correct Answer: B) Can't.
Correct Answer: B) Can't we be friends?.
Correct Answer: A) Shall.
Correct Answer: A) The book must be returned by Friday at the latest.
Correct Answer: B) Might.
Correct Answer: B) May.