They are only children of not more than twelve and don't realize to organize suc
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They are only children of not more than twelve and don't realize ________ to organize such an exhibition．
A.when they take
B.what it takes
C.how they take
D.what takes them
试题答案
B
what引导从句，作realize的宾语；it在从句中作形式主语，真正的主语是to,organize,such,an,exhibition．