问题补充:
--I’m going to the States?
--How long you in the States?
A. are; stayed
B. are; staying
C. have; stayed
D. did; stay
答案:
A. are; stayed
(答案→)B. are; staying
C. have; stayed
D. did; stay
解析:考查时态,短暂性动词的进行时表示将要做什么,由第一句be going to表示将要去,be staying表示将要住多长时间,句子意思“你将在美国住多长时间?”,A表示被动;C表示现在完成式;D表示一般过去式,所以选B