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