5.The children, ______ had played the whole day long, were worn out. 　　　
(A)all of what
(B)all of which
(C)all of them
(D)all of whom

答案：登入後查看
統計： A(0), B(1), C(0), D(0), E(0) #987635

詳解 (共 1 筆)

#1202021
缺少主语，all of whom指代这些孩子们。
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