— Could we practice playing the guitar in the hall, Sir ? —No , ___________ you have the principal’s (校长) note.
#55372
A
if
B
unless
C
because
D
since
推荐题目
—The passage is too hard to understand.—Yes, ________ it's very short and there are no new words in it.
#55256
A
so
B
as
C
because
D
though