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My friend’s flight had taken off _________ I got to the airport to see him off.
#56042
A
while
B
after
C
before
D
until
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Do you know the young lady _____ your mother is talking?
#55573
A
who
B
whom
C
with whom
D
which
 It’s five years _____ our teacher came to Jiangyan.
#58486
A
since
B
when
C
although
D
if
This story is too difficult for us. _____ read something easier.
#55137
A
Why not
B
Why not to
C
Why not you
D
Why don’t
---_______do you send e-mails to your pen friend?  ------Once a month.
#56239
A
How long
B
How far
C
How much
D
How often
 ____ it snowed heavily yesterday, nobody in our class missed the lesson．
#58529
A
Though
B
Because
C
Unless
D
Since