By the time we —— the railway station,the train—— A.reach ..is left B.is reaching.. l
eavesC.reached..hasleftD.reached..hadreached详细说明为什么选那个答案...
eaves
C.reached..has left
D.reached..had reached
详细说明为什么选那个答案 展开
C.reached..has left
D.reached..had reached
详细说明为什么选那个答案 展开
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