Question

单项选择 If you do your best,I am sure you'll( )do i

单项选择
If you do your best,I am sure you'll( )do it well.
A.can B.could C.are able to D.be able to

Answer 1

选D you‘ll是 you will 的缩写
will是情态动词，后加动词原形，can/could也都是情态动词，所以A B排除。
be able to do sth. 能够做某事

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Answer 2

D，这还是比较明显的

Answer 3

D
be able to能够，，，，
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