I often go to school ____ 6: 50 in the morning.

1. I often go to school ____ 6: 50 in the morning.

A. at B. in C. on

【考点】

介词辨析;

【答案】

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单选题普通

1. I can see a bird ____ the sky.

A. on B. in C. at

单选题容易