题目内容

Great changes in the past 20 years.

A. have taken place
B. takes place
C. are taken place
D. is taken place

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Young children must by adults.

A. look after
B. is looked after
C. looked after
D. be looked after

Ito clean the classroom after school.

A. asked
B. was asked
C. asks
D. were asked

English and French in Canada.

A. are spoken
B. is spoken
C. speak
D. speaks

Students shouldan active part in campus activities.

A. take
B. get
C. make
D. takes

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