题目内容

9、The tables and pictures help make ________ clear ________I wasn't sure of before.
  A. it; for me to understand what                       B. it; everything
  C. everything; to understand what                    D. /; what

试题答案

9、A

解析:it为形式宾语,后面的不定式作真正的宾语,what从句为宾语从句,what又在宾语从句中作of的宾语。

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