问题

acts, scientists have thatmore energy is being absorbed from the sun, throwing the earth’s energy “out ofbalance”

A:should
B:must
C:couldn’t
D:can’t

正确答案是：

同类题型

下列各句中，加点的成语使用不恰当的一项是（）

The glass is______water.

____ about the new model, and I firmly believe that there will be a good market for it.

Did you remember to give Jerry the money?–Yes________ I saw her, I’m sure

They didn’t do it by themselves instead of Uncle Wang for help.