26、Department stores offer a big ____ of items.

A. kind

B. variety

C. type

D. model

答案：B。

27、The garments in the department store are so expensive that I can't   __them.

A. buy

B. purchase

C. afford

D. take

答案：C。

28、We soon arrived　 the airport.

A. in

B. at

C. on

D. of

答案：B。

29、John is busy　　　his girlfriend with her paper.

A. to help

B. helping

C. help

D. helps

答案：B。

30、They __ ______ good friends and often visited each other.

A. are used to being

B. are used to be

C. used to being

D. used to be

答案：D。