21. ---Have you heard the latest news? ---No, What ________?
A. is it B. is there C. are they D. are those
22. Some pre-school children go to a day care center, __________ they learn simple games and songs.
A. then B. there C. while D. where
23. The manager suggested an earlier date ____________ the meeting.
A. on B. for C. about D. with
24. ---It’s a long time since I saw my sister.
---_______________ her this weekend?
A. Why not visit B. why not to visit
C. Why not visiting D. Why don’t visit
