Only then ________ that he had lost a good chance of achieving his dream.
| A．he realized | B．realized he | C．did he realize | D．will he realize |
_____ 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
12 multiplied by 3 equals 36.
A. times B. double C. minus