_________ begin _________ 8:00. (    )

A．Class; at

B．Classes; at

C．Class; in

D．Classes; in

We have 6 lessons _________ a day.  (    )

A．in

B．at

C．on

用正确的介词填空。
Kate: Jim, where were you yesterday?
Jim: I was 【小题1】 home.
Kate: Was your mother at home, too?
Jim: Yes, she was【小题2】 the kitchen. She cooked some food for me.
Kate: What about your uncle (叔叔)? Where was he?
Jim: Oh, I think he was 【小题3】 a spaceship. Because he is an astronaut. Where were you, Kate?
Kate: I was 【小题4】 school. I played basketball with Amy.

我会根据图片选择正确答案。

A．can jump

B．a farmer

C．on the farm

D．under E. on

1. This is ________.
2. The cows are ________.
3. He ________.
4. The ball (球) is ________ the desk.
5. The ball (球) is ________ the desk.

A cow lives _______ a farm. (   )

A．in

B．on

C．at