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 |
Christmas is ________ federal holiday in the States—all government employees get ________ day off.
| A．the; the | B．a; / | C．a; the | D．/; the |
At the meeting, the old man ________ some good advice about bringing down the market price of housing.
| A．came about | B．came along | C．came up with | D．came out |
It is nice to hear from a close friend. ________, we last met more than thirty years ago.
| A．What’s more | B．That is to say |
| C．In other words | D．Believe it or not |
It is his horse, according to the old man, ________ saved him from the trap.
| A．who | B．that | C．which | D．what |
Do you have any difficulty ________?
| A．on listening | B．to listening | C．for listening | D．in listening |