— How long _________ in singapore?— For just the weekend. I’ll be back next Monday morning.
#101765
A
have you stayed
B
are you staying
C
did you stay
D
do you stay
推荐题目
 They _______ when they heard him confess his fault.
#104169
A
had been surprising
B
were surprising
C
were surprised  
D
had been surprised
The car___much money.
#103738
A
not cost
B
not have cost
C
isn’t cost
D
didn’t cost