—Sorry, do you mind if I smoke here? —Yes,            
#4877
A
you could
B
go ahead
C
I do
D
my pleasure
推荐题目
From his ____ voice on the phone, I know everything is going under way. 
#4618
A
satisfactory
B
satisfying
C
satisfied
D
satisfaction
She _______ in Zhuzhou for ten years.
#4547
A
will work
B
work
C
was working
D
has worked
His wife ___ to catch the first train but she was too late.
#4802
A
is hoping
B
had hoped
C
has hoped
D
would hope