(   )31.—Where are Maria and Kangkang?

—They _____ England.

A. have been to             B..have gone to             D. had been in

(   )32.—What _____ to your village in recent years?

—Lots of roads, buildings, parks and so on.

A..have happened   B .has happened            D.happened

(   )33.—What did you do during your summer holiday?

—I spent my holiday _____ English in Summer Classes.

A.improving                  B.improves            C.to improve