Not once________to Michael that he could one day become a top student in his class.
(2013·湖南，35)
| A．occurred it | B．it did occur |
| C．it occurred | D．did it occur |
I think your health will soonif you do regular exercise.
| A．give up | B．take up | C．pick up | D．get up |
—Excuse me, but could you please turn the radio down?
—Sorry, Iyou could hear it.
| A．don’t realize | B．haven’t realized | C．didn’t realize | D．hadn’t realized |
With some technical problems to be solved, it may be a whilethe system is put into use.
| A．when | B．after | C．since | D．before |
Only when you stay withlocal people for a period of time will you havebetter understanding of life here.
| A．a; 不填 | B．the; a | C．不填; the | D．the; the |
The purpose of her talking to me last night actually _______this: That I shall never trust him any more in future.
| A．comes round | B．comes out | C．comes on | D．comes to |