As we all know the H1N1 Flu is so serious, students can’t go into the school _______ they take the temperature and get sure they don’t have a fever.
#55588
A
till
B
after
C
when
D
until
推荐题目
– _________ do you go to your school library?– Three times a month
#58110
A
How long
B
How often
C
How much
D
When
—Do you know the famous singer Wang Lihong came to Nantong on May 19? — Yes. _____ he appeared on the stage, all the audience couldn’t help clapping.
#57744
A
If
B
As soon as
C
Unless
D
Before
—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go to bed _____ 12 o’clock last night.
#58255
A
until
B
when
C
though
D
unless