----May I go swimming this afternoon? ----I'm afraid not _______ you have finished your homework.
#55714
A
unless
B
because
C
if
D
though
推荐题目
--- When did your father come back last night?--- He didn’t come back _______ he finished all the work.
#56358
A
until
B
while
C
if
D
unless
—You look so tired. What’s the matter?—I was so busy that I didn’t go to bed 12 o’clock last night.
#56595
A
until
B
unless
C
if
D
so
