题目内容
______ is a good form of exercise for both the old and the young.
| A．Walk | B．To walk |
| C．Walking | D．The walk |
C
解析试题分析:句意：散步对老人和年轻人都是一种很好的锻炼方式。此句中缺少主语，不定式和动名词都可以做主语，但是不定式表示某一次具体的活动或动作，而动名词可以表示一种习惯和爱好，从句意可知答案选C。
考点：考查非谓语动词
The sentence wants _______ once more as many students still have difficulty understanding it.
| A．to explain | B．explaining |
| C．being explained | D．explained |
While shopping, people sometimes can’t help _______ into buying something they don’t really need.
| A．to persuade | B．persuading |
| C．being persuaded | D．be persuaded |
The manager promised to keep us _____ of how our business was going on.
| A．informed | B．informing |
| C．being informed | D．to be informed |
His computer, which cost him a sum of money several weeks ago, is out of order and wants _______, though it looks very new.
| A．to be repairing | B．repaired |
| C．repairing | D．to repair |
George Gould too visited the tomb, ____ a high fever the next day.
| A．only to catch | B．caught |
| C．being caught | D．catching |
____ for its well-preserved ancient Tibetan houses, Dukezong was one of the most popular resorts in Shangri-la.
| A．Knowing | B．To know |
| C．To be known | D．Known |
________ the right decisions ________ the future is probably the most important things we'll ever do in our lives.
| A．Making；concerned | B．Made；concerning |
| C．To make；concerned | D．Making；concerning |