問題詳情
【題組】35. The students should have their goggles ________ before starting a science experiment.
(A)having put on
(B) put on
(C) putting on
(D) puts on
參考答案
答案：B
難度：簡單0.736842
統計：A(38),B(868),C(236),D(36),E(0)
用户評論
【記憶吐司】評論
此題考使役動詞, 因物體是被穿戴上去的, 所以要用被動語態have + 物 + PP