His birthday is ______ February (二月) 28.

Don't look out of the window ______ class.

They are from America.

They are ______ (美国人).

They speak ______.

We are Chinese.

We are from ______.

We speak ______.

A: Excuse me, what's that in English?

B: It's a frisby. Do you want ______?

A: OK. Thanks.

A: Oh, dear! Is that broken?

B: No, it's OK!

A: Thank ______!

We are listening ______ the radio.

There ______（有）some water in the bottle.

The students are listening ______ the teacher.

根据括号要求写出相应部分:

stop (现在分词) ______