---Did you wait for him long? ---No, I hadn’t waited long _______ he appeared.
#33716
A
unless
B
until
C
before
D
since
推荐题目
The eldly are treated with respect and the young are given____.This is a harmonious family__grandparents ,aunts and uncles may well live very near the immediate family.
#34085
A
love, which
B
happiness, in which
C
affection, where
D
care, whose
Our class discussed the question of __________it is necessary for us students to use mobile phones on campus.
#31888
A
if
B
where
C
whether
D
that
You ought to have a good rest ________ you’ve finished your painting.
#33391
A
even if
B
when
C
now that
D
as long as
She thought I was talking about her daughter, __________,in fact, I was talking about my daughter.
#31444
A
whom
B
where
C
which
D
while
everybody enjoys fresh cut flowers around his house．few people know how to keep them for as long as possible．
#79959
A
Because
B
Since
C
While
D
If