Paul doesn’t have to be made  _______ . He always works hard.
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A
to learn
B
learn
C
learning
D
learns
推荐题目
Trees ________ every year to make our city greener.
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A
plant
B
are planted
C
were planted
D
will be planted
 This movie ________ on the Internet.
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A
watch
B
watches
C
can watch
D
can be watched