He’s not a perfect child. He sometimes talks back ____ his parents talk with him.
#55216
A
if
B
before
C
when
D
until
推荐题目
—_______ is the meeting room, Mrs. Smith? —It’s about 20 meters long and 10 meters wide.
#55484
A
How big
B
How far
C
How tall
D
How long
Many students didn’t realize the importance of study _______ they left school.
#57914
A
when
B
until
C
after
D
unless