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
推荐题目
---His brother John began to study French last year. And now he is good at it. He is so talented.---_______ He always learns things quickly.
#55723
A
So did his brother
B
So is his brother
C
So his brother is
D
His brother so did
---When shall we leave for Shanghai?---We won’t we have visited all the places of interest in Nanjing.
#57099
A
until
B
while
C
as
D
since
The art club is for members only. You can’t go in _______ you are a member.
#56671
A
unless
B
because
C
if
D
though
–_______________ does a CRH train run? –It runs up to more than 300 km an hour.
#56034
A
How long
B
How far
C
How fast
D
How soon