問題詳情
22. The ground is all wet. It _____ not long ago.
(A) must rain
(B) must rained
(C) must be rained
(D) must have rained
參考答案
答案：D
難度：適中0.567
書單：沒有書單，新增
用户評論
【強尼】評論
22. The ground is all wet. It _____ not long ago.
【強尼】評論
22. The ground is all wet. It _____ not long ago.