圈出使用正确的单词，完成句子。

1.—Can you sing in English, Tommy? —Sorry, I (can, can't).

2. I want (to join, join) the music club.

3. Tom can play the guitar very (good, well).

4.—Can you help kids with (swimming, swim), Mike? —Yes, I can.

5.—What can you do? —We can (sing, sings) in English.

6. Can you (speak, say, talk) English?