問題詳情
4. We had better have a first-aid kit because scientists still have difficulty ___ when a great earthquake will take place.
(A) attending
(B) predicting
(C) preventing
(D) sneezing
(A) attending
(B) predicting
(C) preventing
(D) sneezing
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增
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