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
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Don’t be afraid of asking for information ______it is needed.
#55699
A
when
B
after
C
although
D
unless
–What was your brother doing at this time yesterday?-- He was reading a magazine ________ I was writing an e-mail at home.
#55135
A
as soon as
B
after
C
until
D
while
The twin sisters have learned a lot ________ they came to China.
#55315
A
when
B
after
C
since
D
as soon as
The doctor says that you will end up in hospital _________ you go on smoking like that.
#56599
A
unless
B
if
C
because
D
until