While we are developing agriculture and industry, we must prevent the earth ______.
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A
from polluting
B
polluted
C
polluting
D
being polluted
推荐题目
While working in the countryside , the students ________ a great deal of knowledge on plant life.
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A
looked up
B
picked up
C
put up
D
called up
The prisoner had little difficulty in ___ from the police.
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A
getting out
B
getting on
C
getting away
D
getting of
The whole morning _____ the windows and the floors tomorrow.
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A
shall be spent to wash
B
is going to take to wash
C
will speng in washing
D
will be spent washing
．Jenny was looking for a seat when，luckily，a man____________and left．
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A
took up
B
got up
C
shut up
D
set up