语法词汇练习 语法大全 语法详解 英语听力 
Never stand up ________ you are asked to.
#58222
A
if
B
since
C
unless
D
when
下一题
推荐题目
We should protect the earth，         we will have no water to drink．
#58271
A
so
B
or
C
and
D
but
He didn’t go to school yesterday _______ he was ill.
#58367
A
because
B
because of
C
if
D
so
—How do you like the story?—Interesting, _______ the end of it is not perfect.
#58347
A
so
B
though
C
or
D
because
_________ do you spell it?
#56329
A
What
B
How
C
How many
D
How old
You should return the digital camera to Sally ________she will get angry.
#57832
A
so that
B
because
C
before
D
or