21. After winning in Iraq，the country fell into ．new worries of economywar
A. the; the B. a; the C. the; ／ D. a; ／
22. After the meeting, I to write a report on our next term's work.
A. set about B. set aside C. set out D. set off
23. It is most _____that the environmentalists will come to the area to investigate the possible damage caused by the serious pollution.
A.likely B.perhaps C.possibly D.probably
