—What are the rules? —Well, we can't arrive late for class. We must be ____ time.

1. —What are the rules?

—Well, we can't arrive late for class. We must be ____ time.

A. at B. in C. on D. with

【考点】

介词短语;

【答案】

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单选题普通

1. My mother isn't fat or thin.She is ____ medium build.

A. at B. of C. in D. on

单选题容易

2. Dave sits ____Lucy. He is really tall, so Lucy can't see the blackboard.

A. behind B. infrontof C. near D. next

单选题容易

3. Lots of stars are bright(明亮的) in the sky(天空) at ____.

A. morning B. afternoon C. evening D. night

单选题容易