It’s worth____ the time and effort to learn how to do it.
(A)to make
(B)made
(C)making
(D)to be made

答案：登入後查看
統計： A(74), B(8), C(111), D(7), E(0) #437753

詳解 (共 1 筆)

#701029
be worth + Ving
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