Great attention must be paid __________ welfare, especially in the poor area.
| A．develop | B．to develop |
| C．to developing | D．developing |
I have bought two ball pens, _____ writes well.
| A．none of them | B．neither of them | C．none of which | D．neither of which |
I bought a dress for only 10 dollars in a sale; it was a real ______.
A. exchange B. business C bargain D. reward
--- Did you have ____fun on your trip ?
---- Yes,. It’s really ____ pity that you didn’t come with us.
| A．a；a | B．a；the | C．/；the | D．/ ；a |
---Where is my pen?
--- I _____it.
| A．might lose | B．wouldn’t have lost | C．should have lost | D．must have lost |
The man ______ you are talking is in the next room.
| A．to whom | B．about whom | C．who | D．whom |