_______isknowntoall，Chinawillbean_______powerfulcountryin20or30years’time.
A、That；advancingC
as 可以用来引导一个非限制性定语从句，通常无明显的先行词。 as 指代的是主句陈述的内容。而 as 引导的从句既可以放于句首，也可以放于句末或句中。
句子写作：HeisverybusypreparingIELTS.Hehasnotimetoplay.
句子写作：The judge had a hard time deciding___________________.
句子写作：I was very embarrassed .I didn’t know what I should do.
Howmanypartsdoesascienceandtechnologypaperconsistof?Whatarethey?
How many parts does a science and technology paper consist of? What are they?
