Milk will turn sour soon on hot days ______ it is stored in the refrigerator．
#30135
A
since
B
until
C
because
D
unless
推荐题目
23. Tom had to be told two or three times ________ he could remember what the teacher said.
#79646
A
before
B
when
C
until
D
As
The boy became fatter and fatter each day and __________ made his parents sad.
#33223
A
which
B
what
C
he
D
it
_______ Lucy were not given timely treatment, she would suffer from a cough for the rest of her life shocked her parents.
#34766
A
That
B
If
C
That if
D
If that
——Did you stay up very late last night?——No，It was not 10 o’clock yet ____I went to bed.
#30760
A
when
B
until
C
that
D
while
-– I wonder how much you charge for your services.--- The first two are free the third costs $30.
#80672
A
while
B
until
C
when
D
before