2. I _______ (be) to Beijing for many times.

1. - Mom, may I go out to play football?

- _______ you _______ (finish) your homework yet?

8. Last Sunday I visited the Chinese National Museum of History and I have learned a lot _______ it.

7. Maria, have you just come back _______ your hometown?

6. I wronged them yesterday and I felt sorry _______ them.

5. Our English teacher will give us some work to do _______ the holiday.

4. Kangkang has been to Mount Tai twice _______ his parents.

3. I want to talk _______ you about something important.

2. How many countries will take part _______ the World Cup?

1. I saw some students working_______ the disabled children yesterday.