This also keeps the air，soil，water crops________ chemicals.
#25521
A
out of
B
out from
C
free of
D
rid of
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There are solid reasons for China to claim ownership of the Diaoyu Islands, which lie about 200 miles the eastern coast of our country.
#25516
A
to
B
on
C
off
D
of
________cleaning the yard and making up the beds for the old，we also read newspapers for them and had chats with them.
#26238
A
Except for
B
Rather than
C
Apart from
D
Instead of
---Can you tell me how often he practices his English? ---__________.
#25592
A
At times
B
At one time
C
At all times
D
At a time
My friend Martin was seriously affected by a strange fever; _____ , he could neither eat nor sleep.
#27259
A
after all
B
as a result
C
on the other hand
D
however