Giải giúp câu 21,23 24 nha mn mk cần gấp
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20. He has
A. done
21. The company.
A. got
22. Little research has been
A. carried
23. They have
A. raised
into
B. made
trouble when it tried to expand too quickly.
B. made
C. fell
into the subject.
B. conducted
a campaign to end world poverty.
B. launched
24. I met him when I worked in Madrid, and I've
A. remained
B. stayed
You can help prevent heart disease by
deing
worked
C.
C. ran
D. set
in touch with him ever since.
D. got
C. kept
your lifestyle.
D. taking
D. led
D. built
C. changing