- 试题详情及答案解析
- We believe scientists will a way to solve the problem of air pollution.
| A．set off | B．put off |
| C．come up with | D．catch up with |
- 答案：C
- 试题分析：句意：我认为科学家会想出一种解决空气污染这一问题的方法。A. set off启程；B. put off 推迟； C. come up with想出······；D. catch up with追上······，结合句意，故选C。
考点：考查动词短语辨析。