問題詳情

3.Now four-meter-high nets_____ up to stop thebutterflies_____ into the traffic flow.
(A)are set；to go
(B)set；from going
(C)are set；from going
(D)setting；going

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增

用户評論

【Chen Chien】評論

are set 被設置，用被動式stop__........