Mrs. Lawson started to _______all the gifts in her son’s room.
A. sort
B. gave
C. made
D. buy
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Bike mustn’t _____ everywhere.
A. be up
B. be put
C. put
D. putting
All trees must _____well when it is dry.
A. be water
B. watering
C. water
D. be watered
The old man and the children_____ in our country.
A. must take good care
B. must be take good care of
C. must take good care of
D. must be taken good care of
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