4．　 Jim is 15 years old.　 Kate is 14 years old.(合并成一句)

Jim is ___________　 ___________ Kate.

3．　 Sophie has to look after her sick sister at home.(变成一般疑问句)

___________ Sophie ___________ to look after her sick sister at home?

2．　 They enjoyed the concert very much. (对划线部分提问)

　　 ___________　 ___________ they ___________the concert?

1．　 They moved to New York a month ago. (对划线部分提问)

　　 ___________　 ___________ they ___________ to New York?

20．　 Could you please ___________ (clean) the floor?

19．　 We ___________ (buy) some gifts in the Gift Shop the day before yesterday.

18．　 Did you have fun ___________ (camp)?

17．　 John is ________________(thin) than Carol.

16．　 How about ___________ (swim) with us?

15．　 A dog has four ___________ (foot).