I didn’t know ________ the professor would give us a lecture in the hall.
#55178
A
where
B
when
C
what
D
why
推荐题目
We still gave the boy another chance ______he made some mistakes.
#55381
A
though
B
when
C
unless
D
because
—Could we go and watch the football game? —No, ______ you have the tickets.
#57302
A
if
B
unless
C
because
D
since
