2.We have been to Beijing four times.(画线部分提问)

　______ ______ _______ have you been to Beijing?

1.Light travels faster than sound.(同义句)

　Sound _______ travel so _______ as light.

10.He ____________(write) the letter to his pen pal since 9 o’clock.

9.Would you mind _________(open) the windows?

8.How did the children try to make their parents ________(buy) the dolls?

7.What do you have ________(do) at home?

6.I enjoy _________(draw) pictures.

5.They have been________(swim)for two hours.

4.We just need keep _________(read) it.

3.Are you able to _______(eat) seafood?