118. The United States is trying to _______ the serious problems resulting from the energy crisis.
| A．step up | B．cope with | C．cut off | D．end up |
In China, the education is divided into three _______: basic education, higher education and adult education.
| A．scores | B．categories | C．degrees | D．trends |
By the time he was twelve, Edison _______ to make a living by himself.
| A．has begun | B．began | C．had begun | D．had been beginning |
The two sportsmen congratulated each other _______ winning the match by shaking hands.
| A．with | B．on | C．in | D．to |
Information has been put forward _______ more middle school graduates will be admitted into universities.
| A．where | B．as | C．when | D．that |
She stepped on my foot _______, not _______, which made me angry.
| A．by chance; on purpose | B．on purpose; by chance |
| C．for purpose; by chance | D．by chance; for purpose |