1、______ 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

　　2、Judging from his manners at the party, he doesn't seem ______ much education.

　　A. to receive　　B. to be receiving　　C. to have received　　D. to have been received

　　3、They all returned to the village ______ that the danger was over.

　　A. convincing　　B. convinced　　C. to convince　　D. having convinced

　参考答案&解析：

　　1、B　so …that句型的倒装结构。so + 形容词或副词 + 助动词 + 主语 + that 从句。

　　2、C　live是receive的主语，所以应该用主动语态，而receive education发生在过去而又对现在产生影响，应该选用完成时态来表达已完成的动作。

　　3、B　convinced that=they were convinced that“他们确信”convince意为“使某人相信”，故“他们确信”要用被动语态，they were 可省略。