---How’s your tour around the North Lake? Is it beautiful?
---It ________ be, but it is now heavily polluted.
A. will B. would C. should D. must
I won’t call you, ________ something unexpected happens.
A. unless B. whether C. because D. while
---The last one __________________ pays the meal. ---Agreed!
A. arrived B. arrives C. to arrive D. arriving
---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
The manager suggested an earlier date ____________ the meeting.
A. on B. for C. about D. with
Some pre-school children go to a day care center, __________ they learn simple games and songs.
A. then B. there C. while D. where
