____ about wild plants that they decided to make a trip to Mexico for farther research.
问题描述：
____ about wild plants that they decided to make a trip to Mexico for farther research.
A.How curious the couple we’re B.So curious the couple was
C.The couple was such curious D.So curious were the couple
WHICH ONE?WHY?
答
D. So curious were the couple 为正确选项.
so ...that句型,so位于句首时,主句要倒装,So+adj +系动词+主语.
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