1. (2021四下·菏泽月考) 从方框中选出合适的句子补全对话。

A. OK, Let's go. B. Good morning. C. It's time for P. E. class. D. What time is it now? E. Yes.

Tim: Good morning, Mary!

Mary: Tim.

Tim:

Mary: It's nine thirty.
Tim: Oh,

Mary:

Let's go to the gym.

Tim: