This also keeps the air，soil，water crops________ chemicals.
#25521
A
out of
B
out from
C
free of
D
rid of
推荐题目
In recent years much more emphasis has been put______ developing the students productive skills.
#25190
A
onto
B
in
C
over
D
On
Today Xiao Li is absent ___the class. He ___ ill.
#27559
A
for; could have been
B
with; should have been
C
at; could have been
D
from; may have been
When Alice saw a ______ tiger in front of her, she felt that she was ______.
#25843
A
dangerous; in danger
B
in danger; dangerous
C
dangerous; dangerous
D
in danger; in danger
When Tracy was told her son's illness could be cured, she left the hospital ．
#26152
A
in peace
B
in surprise
C
in time
D
in relief