---You were brave enough to raise objections (反对) at the meeting.
---Well, now I regret _______ that.
| A．to do | B．to be doing | C．being done | D．having done |
Once your business because international, _____constantly will be part of your life.
| A．your fly | B．your flight | C．fight | D．flying |
When I handed the report to Hohn , he said that George was the person______.
| A．to send | B．for sending it | C．to send it to | D．for sending it to |
The party was a success ,but we thought it a pity not ______you.
| A．to invite | B．to be inviting | C．to have invited | D．to be invited |
.He went to American _____some English as well as ____.
| A．learning ,to travel | B．learning, traveling | C．to learn, travel | D．to learn ,to travel |
Do you have any letters ______ today?
-I had my son _______it this morning .Thank you anyway.
| A．post , to post | B．posting ,post | C．being posting , posted | D．to be post ,post |