—Could you please________the floor for me？
—Yes，sure．
| A．cleaning |
| B．to cleaning |
| C．clean |
| D．to clean |
Will people use money_____100 years?
| A．after | B．in | C．for | D．of |
_____ number of students in our class is 59.___ number of them get to school by bus.
| A．The, The | B．A, The |
| C．The, A | D．A, A |
Parents always tell children to stay away from the fire.
A. keep on B. keep out C. keep off
Perhaps Tom will join our party tonight.
A.May be B. Maybe C. Probable
Ｉwasn’t able to finish my homework because I was ill.
A. can’t B. couldn’t C. shouldn’t