about wild plants that they decided to make a trip to Madagascar for further research.
A. So curious the couple was
B. So curious were the couple
C. How curious the couple were
D. The couple was such curious
网友回答
A. So curious the couple was
(答案→)B. So curious were the couple
C. How curious the couple were
D. The couple was such curious
解析：考查倒转句。当“so+形容词/副词”谓语句首的时候，后面的句子要使用部分倒装的形式。D项没有使用倒装句，但是such后面不能接形容词，副词只能接名词或者名词短语。句意：那对夫妻对于野生动物是如此好奇以至于他们决定到马达加斯加做进一步的研究。根据句意说明B正确。