It is known to all that a proper amount of exercise ________ to good health.
| A．benefits | B．contributes | C．values | D．improves |
The hospital is tests to find out what’s wrong with the little boy.
| A．carrying out | B．carrying forward |
| C．making up | D．making out |
A true friend is the one that is coming in the door while else is going out.
| A．everyone | B．no one | C．nobody | D．somebody |
Hackers, worms and virus have more opportunities to attack your computer if you to the Internet constantly. ycy
| A．are connected | B．are connecting | C．will connect | D．will be connected |
Although it is not our normal _____ to give credit in our shop, this time I think we should consider the matter more closely.
| A．habit | B．intention | C．action | D．practice |
---I’d like a pen which _____ well.---Will this one _____?
| A．writes; do | B．writes；work | C．is written; do | D．is written; work |