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 company is famous ______ selling lots of cheap books over the web.
| A．of | B．in | C．for | D．as |
She attended some courses, including typing and book-keeping, because she was ______ to get a good job.
| A．confident | B．skilful | C．fortunate | D．keen |
In my opinion, obviously, night-time is when children can begin to learn to feel confident ______, without being dependent on anyone else.
| A．by their own | B．on their own | C．with their own | D．to their own |
The problem is _____ difficult for me _____ solve.
| A．so; to | B．quite; to | C．too; to | D．very; to |
Peter had ______ his career in law to become a teacher.
| A．given up | B．given in | C．given off | D．given away |