______ is it that metals plays such an important part in our daily life?
| A．Why | B．What | C．Where | D．When |
The hotel is always full of people because it offers a friendly __________ and personal service.
| A．surface | B．atmosphere |
| C．system | D．appearance |
-I'm going to San Francisco for a couple of days.
-__________. I wish I could get away for a while.
| A．It doesn't matter | B．Forget it |
| C．I really envy you | D．I can't agree more |
-I love the Internet. I've come to know many friends on the Net.
-__________. Few of them would become your real friends.
| A．That's for sure | B．It's not the case |
| C．I couldn't agree more | D．I'm pleased to know that |
After the boy disappeared, the anxious relatives and friends spent months trying to __________ what had happened.
| A．look out | B．figure out |
| C．give out | D．rule out |
The orange looks dry, but you may be able to _____ a few drops.
| A．break out | B．give out |
| C．squeeze out | D．put out |