- 试题详情及答案解析
- They ________ the plan for almost three hours, but they haven’t reached any conclusion.
| A．discussed | B．have discussed |
| C．have been discussing | D．were discussing |
- 答案：C
- 试题分析：考查时态分析。A. discussed一般过去时；B. have discussed现在完成时；C. have been discussing现在完成进行时；D. were discussing过去进行时。句意：他们一直在讨论这个计划差不多三个小时了，但是还没有得出任何结论。由for almost three hours可知，要用完成时态，再根据haven’t reached any conclusion ，可知用现在完成进行时态最恰当。故选C。
考点：考查时态分析。