21. Mr. Bill Clinton was elected President of the United States in 1990s.
A. the; the B. a; the C. 不填; the D. the;不填
22. —What is your plan for the holiday, Paul?
— I’ll go on a trip to Yunnan Province with my family.
— .
A. Have a nice time. B. Good luck C. Come back soon. D. Congratulations.
23. After he graduated university, the man went to Canada and found a job there.
A. in B. of C. from D. on
