问题

_______no doubt that a green campus plays an important role in the growth of students, both physically and mentally

A:It is
B:There has
C:There is
D:It has

正确答案是：

同类题型

till working on my project— Oh, you’ll miss the deadline Time is____________

I want to send Mary a card. She may ________ it in a few days ________ post.

This is the first time that he________to join us in a research. [ ]

Everything is packed, and we ______ leave.

er he promises, you can’t ______anything.