The reason for his absence from school was ____ he fell ill.
#73619
A
because
B
why
C
what
D
that
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As long as the laws of nature ______, there will be tornadoes.
#68427
A
exist
B
are existing
C
will exist
D
existed
President Obama held talks with Chinese President Hu Jintao in Beijing, ________ economic recovery, climate change and stopping the spread of nuclear weapons.
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A
which was discussed
B
in which they-discussed
C
when they discussed
D
which discussed
The notice came around two in the afternoon _____ the meeting would be put off.
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A
when
B
whether
C
that
D
how
If we forgave criminals, we might become a society of endless excuses _____ no one accepts responsibility for anything．
#69079
A
which
B
where
C
when
D
as
After Yang Li Wei succeeded in circling the earth, _______ our astronauts desire to do is walk in space.
#74020
A
where
B
what
C
that
D
How