问题描述：
2.After 10 years,she changed a lot and looked different from ___ she used to be.
A.that B.whom C.what D.who
3.---I thinks it's going to be a big problem.
---Yes,it could be.
---I wonder ___ we can do about it.
A.if B.how C.what D.that
请简要说明原因,
A.that B.whom C.what D.who
3.---I thinks it's going to be a big problem.
---Yes,it could be.
---I wonder ___ we can do about it.
A.if B.how C.what D.that
请简要说明原因,
问题解答：
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