He had travelled only seven miles across the Channel ___ his engine failed and he was forced to land on the sea.
| A．before | B．while | C．when | D．it |
The boy the teachers considered _____failed in the exam , _____surprised them very much .
| A．to be the best ;which | B．as the best ,that |
| C．to have been studying well, it | D．being the best ;which |
Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes to classroom tests.
| A．before | B．since | C．when | D．after |
Experience is believing. If you’d like to know what it ____ like to be a soldier in World War Ⅱ，____ the game “Brothers in Arms: Roads to Hill 30”.
| A．would be; try | B．was; try | C．would be; trying | D．was; trying |
--- Is Tom still smoking?
--- No. By next Saturday he _____ for a whole month without smoking a single cigarette.
| A．will go | B．will have gone | C．goes | D．has been going |
Shanghai is the first city in the world ____a high-speed maglev train, from the city to Pudong Airport.
| A．to build | B．to be built | C．to have built | D．to have been built |