问题

_____ is known to all is that effective measuresshould be taken to deal with the problem of the over-exploiting of ourresources

A:Severalmillion
B:Many millions
C:Severalmillions
D:Many million

正确答案是：

同类题型

a nice house, but ________ too small for afamily to live in.

It looks _______ it were going to rain

My father returned at 10 o’clock ______ of June 15.

If you _____________ your study, I am sure you will make greater progress.

_______ you be interested, I will tell youthe whole story.