————the drill is,it is very useful in improving your oral En

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————the drill is,it is very useful in improving your oral English.
A.simple you consider
Byou consider simple
C.somple as you consider
D.as simple you consider.
快告诉我为什么,还有解释各个原因?

C. 考察as引导的让步状语从句,全句意思是：尽管你觉得练习很简单,但它确实能提高你的口语.
as引导让步状从时,意为“即使,即便”；这时as不能置于句首,要放在所强调部分的后面,其结构为：被强调成分+as+其他正常语序（主语+谓语）
这里的被强调成分就是simple(简单),语序为：simple+as+you+consider
A项可以这么改：simple （as）you consider...
B项可以这么改：Although(Though) you consider the drill is simple...
D项可以把as和simple颠倒位置

————the drill is,it is very useful in improving your oral En I think——（this,that,it）is very useful to learn english well. The kettle is ———empty.There is very little water in it.alre the c----- is very useful the c---- is very useful What is the cloth useful——?---We can use it ——the dirty floo the internet is very useful.we can use it( )english —Is that _______ En It is a good way( )improving your english to read for the ma IS this your English d_?–Yes,it is very useful. There ——enough room in the bus,It is very crowded your english is improving fast!