1. When I arrived at the park, I saw those children ______(play) football on the grass.  
2. The headmaster asked us _____(not be) late for school.  
3. Can you tell me how _____(get) to the Children Palace?  
4. He will call you back as soon as he _____(come) back.  
5. The Green family live in the ____(center) part of the village.

1. Watching the dolphin show can ______ (give) us a lot of happiness.
2. Would you like ______ (tell) me something interesting?
3. Let me tell you how ______ (get) to the restaurant.
4. The small garden is the ______ (begin) of the garden tour.
5. Why not decide ______ (go) on vacation with us, Jack?
6. Some of us don' t agree to go to the mountains. What about ______ (go) to the beaches?
7. Don't you want ______ (visit) the Children's Palace?
8. Listen! Someone ______ (sing) Beijing Opera.
9. I like ______ (go) to the movies and ______ (play) sports with my friends.
10. Would you mind ______ (open) the window?