问题补充:
— How long in singapore?
— For just the weekend. I’ll be back next Monday morning.
A. have you stayed
B. are you staying
C. did you stay
D. do you stay
答案:
A. have you stayed
(答案→)B. are you staying
C. did you stay
D. do you stay
解析:考查时态。本题用现在进行时表示将来时,指按照计划安排要发生的事情。句意:—你在新加坡要呆多长时间?在新加坡呆多长时间是事先计划的好的,所以使用现在进行时表示将来时。故B正确。