— 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
— Was it under the tree ________ you were away talking to a friend?— Sure. But when I got back there, the bike was gone.
#55234
A
that
B
where
C
which
D
While
The earth will become worse and worse ________ we do something to stop her from being polluted.
#55977
A
if
B
even if
C
when
D
unless
We really enjoyed the school trip yesterday, ________________ it rained in the afternoon and some of us got wet.
#56696
A
though
B
because
C
unless
D
after
---Did you hear the rain? ---______ .
#55536
A
Until 30 minutes
B
Until 30 minutes later
C
Not until 30 minutes
D
Not until 30 minutes later