you understand this rule, you’ll have no further difficulty.
#31690
A
Until
B
Unless
C
Though
D
Once
推荐题目
I haven’t had a phone in the house for three weeks now, and it’s several days ____I used a phone box last time.
#30092
A
as
B
when
C
if
D
since
_______ we were studying abroad, we learned much about foreign culture and customs.
#31663
A
Since
B
While
C
After
D
During
______ the terrible pollution, so many beautiful fish are fast disappearing in the river.
#33675
A
According to
B
Because of
C
Because
D
As a result
______ really matters in sports is not the winning, but the taking part.
#32088
A
What
B
That
C
It
D
How