问题

Last night Mr Crook didn’t come back at the usualtime______，he met some friends and stayed out untilmidnight

A:wouldn’t
B:mustn’t
C:needn’t
D:may not

正确答案是：

同类题型

Will you join us —_______

Every time he meets with hard problems, he always ________ his parents. [ ]

MrSmith graduated from college at the age of 23, and ___________ he has been working as a teacher in a middle school

_______ after a long walk,Henry called and said he couldn’t come to the meeting[ ]

I _____ as soon as you come back