Many a time ________ swimming alone.
| A．the boy went | B．went the boy | C．did the boy go | D．did go the boy |
The two top students in Mr. Green’s class competed _____ each other for the highest marks.
| A．to | B．for | C．in | D．against |
It is no use ____ with that mean storekeeper, for he won’t cut down the price.
| A．debating | B．talking | C．discussing | D．bargaining |
There is no doubt ____ John will come by bus.
| A．if | B．why | C．that | D．how |
The reason ____he was late was ____he had taken a wrong bus.
| A．why; because | B．for; because of | C．why; that | D．for; that |
The 29th Olympic Games ____ in Beijing in 2008.
| A．will be held | B．was held | C．has been held | D．is being held |