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1. Sometimes tests are needed ______ doctors discover exactly what's wrong with your body.
A.
since
B.
before
C.
although
D.
if
【考点】
引导时间状语从句的连词;
【答案】
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单选题
普通
基础巩固
能力提升
真题演练
换一批
1. You must learn to consult your feelings and your reason ________ you reach any decision.
A.
although
B.
before
C.
because
D.
unless
单选题
容易
1. — Why didn't you help the little boy?
—Oh, he had struggled to his feet ______ I could run over and offered any help.
A.
before
B.
after
C.
when
D.
since
单选题
困难
2. _______ you consider that the airline handled 80 million passengers last year, the accident figures are really very small.
A.
Unless
B.
When
C.
Before
D.
Though
单选题
普通
3. How could I lie to her____ she lived for the truth, whether it was found in music or people?
A.
unless
B.
when
C.
while
D.
though
单选题
普通
1. He smiled politely ______ Mary apologized for her drunken friends.
A.
as
B.
if
C.
unless
D.
though
单选题
普通
2. If you don't understand something, you may research, study, and talk to other people _______ you figure it out.
A.
because
B.
though
C.
until
D.
since
单选题
普通
3. ______ the average age of the population increases, there are more and more old people to care for.
A.
Unless
B.
Until
C.
As
D.
While
单选题
普通