_____ medicine works in a human body is a question ____ not everyone can understand fully.
| A．How; that | B．That; which | C．That; which | D．What; that |
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 |
I would love ____ to the concert last night, but I didn’t get the ticket for it. YCY
| A．to go | B．going | C．to be gone | D．to have gone |