题目内容

刚性基础基底压力的分布形态有哪几种？

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The airline only allows two pieces of luggage. You ___ pack too much or you will have to take it out at the airport!

A. had better not
B. better not
C.had not better

A gentleman ___ his hat and hold it in his hand when a lady enters the elevator.

A. Should put on
B. should to take off
C. should take off

The reason why he ___ to the meeting is that he is a senator.

A. ought
B. ought go
C. ought to go

Dave loves chocolate, but he ___ too much or he will get fat.

A. Should eat not
B. shouldn’t eat
C. should eat