单项选择题
A.don't see B.didn't see C.haven't seen D.hadn't seen
These desks and chairs（）to the children in the mountain...
单项选择题These desks and chairs（）to the children in the mountain villages next week.
A.are sent B.will send C.have sent D.will be sent
Therefore, other things（）equal, the number of workers t...
单项选择题Therefore, other things（）equal, the number of workers that employers want decreases.
A.is B.are C.being D.having
There is（）water in the glass, is there?A.a few B.not ...
单项选择题There is（）water in the glass, is there?
A.a few B.not C.few D.little
