—Why not open the windows to let_____cool air in?
—I'd rather you didn't_____air in our town is terribly polluted．
A．a；The B／；The C．/；/ D．the：/
His father possesses a __________ factory, which does most of the pollution to this river.
| A．paper-make | B．paper-making | C．papers-made | D．paper-made |
—On the contrary, I think it is the mother, rather than her children, ___ to blame.
—I agree with you.
| A．what is | B．that is | C．who are | D．which are |
____ road may lie ahead, that road will take me home.
| A．What | B．That | C．Which | D．Whatever |
You were_____ to help us, but you all escaped.
| A．supposed | B．reminded | C．agreed | D．suggested |
. —Li Hua was in London for two years. —It’s no ___ he can speak English so well.
| A．matter | B．doubt | C．wonder | D．problem |