问题

Thenumber of foreign students attending Chinese universities ________ risingsteadily since1990.

A:is
B:are
C:hasbeen
D:have been

正确答案是：

同类题型

ys followed the marks that they ________, untilfinally they found their way back to the campsite.

Historically, __________main material for making tables has beenwood, but__________metal and stone have also been used.

Jane_______ this Sunday Let’s go and say goodbye toher

Our English is very ______ to us. We alllove her.

How much is the hat