问题

If nothing________，the oceans will turn into fish deserts(2013·湖南，26)

A:does
B:had been done
C:will do
D:is done

正确答案是：

同类题型

I am afraid there’s __________with the computer. Canyou come and have a look?

he moment babies are born, parents are helping them to be released into the world, not to＿＿them or to control their lives for the rest of life.

I t doesn’t take long tobecome to these drugs

felt funny watching myself on TV.[ ]

________your new home ________