by the way,how long ______?I am not sure .I hope to see all the interesting places here before I

by the way,how long ______?I am not sure .I hope to see all the interesting places here before I

题目
by the way,how long ______?I am not sure .I hope to see all the interesting places here before I
go back.
A are you staying B did you stay C have you stayed D had you stayed
答案
A are you staying
从下文,也就是答语中可见,这里问的是对方的打算,说话以后的事,所以选A.只有这个选项,也就是【现在进行时表将来】.
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