Question

-Mary is lazy．

I ________ she ________ get good grades．

1. A.
   think, can
2. B.
   don’t think, can’t
3. C.
   don’t think, can
4. D.
   think, can’t

Answer 1

C
I think引导的复合句变否定句时，否定要前移，且从句用肯定形式。