If it hadn’t rained so hard last night，it_______ so cold today.

_________ no doubt that a green campus plays animportant role in the growth of students, both physically and mentally.

The air in Rizhao is getting much _____ now than a few years ago .

These days lots of people are working_________ to get_________ for their living.

I’m afraid I can’t finish the book within thisweek —Don’t worry