I can give you an example of marry cases students obviously knew a lot of Englis
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I can give you an example of marry cases ________ students obviously knew a lot of English words and expressions but ________ write a good seeay.
A.why; can't
B.when; wouldn't
C.where; couldn't
D.as; had to
试题答案
C
导解:本句第一空用where引导定语从句表示“在这种情况下”,第二空用情态动词的过去式与前句时态一致,表示过去的情形.