— How long_________in Hong Kong?  — For just the weekend. I’ll be back next Monday morning.  
#102400
A
have you stayed
B
are you staying
C
did you stay
D
do you stay
推荐题目
Don't get that ink on your shirt, for it______. 
#104325
A
won'twashout
B
won'tbewashedout
C
isn'twashedout
D
doesn'twashaway
—How did she get infected?  —She ____ the viruses without any protection.
#101750
A
exposed to
B
had exposed to
C
was exposed to
D
has exposed to