动词填空。
1.Would you please give me some advice on ________ (swim)?
2.I’d like to, but I have something ________ (wash) today.
3.Nothing ________ (be) difficult if we put our heart into it.
4. ________ (not be) late for school.
5.Just now, Mr. Smith ________ (invite) us to join the skiing competition.
6.Don’t make any noise, Grandma ________ (sleep).
7.I’ll wait here for your mother until she ________ (return) from work.
8.The monkey ________ (hide) themselves under the trees when it was rainy.
9.He with his friends usually ________ (play) football after school.
10.What are yon going to do? How about ________ (go) out to play football?
