He was just falling asleep _____ there was a loud knock on the door.
#56552
A
while
B
when
C
then
D
until
推荐题目
Frank often wears a mask _____ he can keep fit in the foggy and hazy (霾) weather.
#55316
A
only if
B
until
C
so that
D
even though
My cousin has been learning English _____she was six years old.
#57903
A
when
B
since
C
until
D
because
The boy doesn’t speak his sister, but his written work is very good.
#58140
A
as well as
B
so good as
C
much better than
D
much worse than
—Will you play basketball against Class 3 tomorrow?—Yes. ________ it snows.
#58353
A
If
B
Until
C
When
D
Unless