问题

Once harm is _ to the eco-system, all species will __, including man himself.

A:made; be in danger
B:done; be dangerous
C:caused; be endangered
D:done; be in danger

正确答案是：

同类题型

I haven’t seen Tom for several monthsThe last time I saw him, he ______ to find a job in London.

You can hardly imagine the difficulty the woman had ________ her children.

— Do you think we should accept that offer?— Yes, we should, for we______ such bad luck up till now, and time _____ out. [ ]

The mountain-climbing ___ every one of us.

What a table! I have never seen such a thing before It is ______ it is long