问题

E-mail , as well as cellphones, _____an important part in daily communication

A:have played
B:play
C:are playing
D:is playing

正确答案是：

同类题型

I’m worried about my school grades. What’s your advice—You shouldn’t wait _________ the last minute to study for a test.

The ship rocked violently from side to side, ______ many passengers to feel seasick [ ]

Can you anything strange —It like a small mouse.

_____ Dasan is from Canada, he can speak Chinese very well.— I know he studies Chinese hard.

alot of damage to this area