Sam _____ some knowledge of the computer just by watching others working on it.
| A．brought up | B．put up | C．set up | D．picked up |
The teacher commanded that the naughty boy _____, but he refused.
| A．stand up | B．stood up | C．would stand up | D．had stood up |
In the dark street, there wasn’t a single person she could turn for help.
| A．who | B．whom | C．that | D．to whom |
I don’t believe his dream’s come true, it?
| A．is | B．isn’t | C．has | D．hasn’t |
Climbing Mount Tai great skills and not without risk.
| A．requires; is | B．required; was | C．required; are | D．required; were |
To our surprise, the 60-year-old granny driver eventually and drives well.
| A．became | B．has become | C．turned | D．has turned |