The teacher told the boy students ______ football on the grass.
A. not play
B. not to play
C. played
D. playing
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Betty asked her sister ____ to the railway station to see her off.
A. not to come
B. not to go
C. to not come
D. to not go
The boy wanted to ride his bike in the street, but his mother told him _____.
A. not to
B. not to do
C. not do it
D. do not to
Some students are going to China in summer vacation, and ____.
A. some are to America
B. some going to America
C. some to America
D. some America
The workers did all ___ good care of the old man.
A. they could to take
B. they could take
C. which they could to take
D. what they could to take
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