用所给单词的正确形式填空。
1. Let's (clean) the windows.
2. When's (he) birthday?
3. Now the children are (sing) the song.
4. Ben often (have) breakfast at seven in the morning.
5. Mike (not) like listening to music.
6. Do you like (collect) stamps?
7. We are (have) a birthday party.
8. There (be) a big cake and some candles.
9. Yang Ling's uncle (live) in a town near Nanjing.
10. He usually (go) shopping at Spring Festival.