She says that she’ll have to close the shop ________ business improves.
#31192
A
if
B
unless
C
after
D
when
推荐题目
There is plenty of rain in the southeast, there is little in the northwest.
#31678
A
because
B
therefore
C
while
D
as
The old woman is warmhearted. She is always ready to help ________ is in trouble.
#30408
A
no matter who
B
whomever
C
whoever
D
anyone
Children’s brains can’t develop properly_______ they lack protein
#80031
A
when
B
since
C
because
D
unless
He was about to make a call to Tom _____ Tom patted me on the shoulder.
#31555
A
as
B
until
C
while
D
when
