---____ do you exercise, Miss Lin? ---Once a week.
#60244
A
How long
B
How often
C
How far
D
How soon
推荐题目
He must be helping the old man to water the flowers,______ ?
#65512
A
is he
B
isn’t he
C
must he
D
mustn’t he
—Oh, it's so cold. We haven't had such a severe winter for so long, _______ we？—Yes, the forecast says it's going to get worse _______ it warms up.
#65428
A
have; before
B
had; after
C
did; when
D
do; if
It is the second time that you have been late, ______?
#64499
A
haven’t you
B
isn’t it
C
is it
D
have you