Mr. Brown, ______ chairman of the trade union, will visit our factory in _____ month of May.
| A．/; the | B．a; the | C．the; / | D．the; the |
It was not until near the end of the letter ________ she mentioned her own plan.
| A．that | B．where |
| C．why | D．when |
It was only after he had read the papers ________Mr.Gross realized the task before him was extremely difficult to complete.
| A．when | B．that |
| C．which | D．what |
Only when he apologizes for his rudeness________to him again.
| A．I will speak | B．will I speak |
| C．do I speak | D．I speak |
Not once________to Michael that he could one day become a top student in his class.
| A．occurred it | B．it did occur |
| C．it occurred | D．did it occur |
“Never for a second，”the boy says，“________ that my father would come to my rescue.”
| A．I doubted | B．do I doubt |
| C．I have doubted | D．did I doubt |