187.
(A) is used to operate
(B) used to operate
(C) is used to operating
(D) used to operating

答案：登入後查看
統計： A(13), B(27), C(12), D(2), E(0) #1593257

詳解 (共 1 筆)

#2707888
to + V , be V + to 為...
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