题文
---You were brave enough to raise objection at the meeting.
---Well, now I regret ______ that.
| A．to do |
| B．to be doing |
| C．to have done |
| D．having done |
推荐试卷
---You were brave enough to raise objection at the meeting.
---Well, now I regret ______ that.
| A．to do |
| B．to be doing |
| C．to have done |
| D．having done |
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