问题

39_______ is certain, people’s living conditions in China have improved a lot since the 1980s

A:It
B:As
C:what
D:Which

正确答案是：

同类题型

You may______remember some idioms in the texts but you couldn’t ______ remember all the words in them.

Has anyone taught him how to do it?—SureLots of advice________, but he hasn’t made a decision

Laura a nice pencil box and four pens in it.—I have one, too.

I lost my bike yesterday and had to walk home. —______________.

okesman did not give out the detailsof the message, saying, “it should not be made public as it is a ______ issue”．