Don’t turn off the computer before closing all programs，________ you could have problems. (2013·北京，22)
| A．or | B．and |
| C．but | D．so |
Let’s go to give the stranger a hand.________he’s got into some trouble.
| A．Occasionally | B．Obviously |
| C．Suddenly | D．Surprisingly |
—Could you ________ take care of my cat while I’m away?
—Sure.Leave it to me，please.
| A．perhaps | B．possibly |
| C．maybe | D．probably |
Sam ________ some knowledge of the computer just by watching others working on it.
| A．brought up | B．looked up |
| C．picked up | D．set up |
The new movie ________ to be one of the biggest moneymakers of all time.
| A．promises | B．agrees |
| C．pretends | D．intends |
By playing with the native boys and girls，one can ________ a lot of their language.
| A．pick up | B．set up |
| C．build up | D．put up |
Teaching pronunciation class to a mixed group of learners can ________ a teacher with many challenging problems.
| A．provide | B．produce |
| C．present | D．offer |
I believe his design is ______for it’s completely different from others’.
| A．common | B．reasonable | C．practical | D．original |
You are supposed to collect the mistakes you have made. You will make the same mistakes ______.
| A．also |
| B．either |
| C．otherwise |
| D．though |
—Can I help you with it?.
—I appreciate your _____, but I can manage it myself.
| A．advice |
| B．question |
| C．offer |
| D．idea |