22. —Mr. Smith _____ in Russia for 10 years.
—No wonder he can speak Russian fluently and now teaches Russian in a Chinese college.
had stayed B. has stayed C. stayed D. stays
We agreed _______ here but so far she hasn’t turned up yet.
| A．having met |
| B．meeting |
| C．to meet |
| D．to have met |
—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 |
The first textbooks _______ for teaching English as a foreign language came out in the 16th century.
| A．having written |
| B．to be written |
| C．being written |
| D．written |
He sent me an e-mail, ________ to get further information.
| A．hoped |
| B．hoping |
| C．to hope |
| D．hope |
Sandy could do nothing but ________ to his teacher that he was wrong.
| A．admit |
| B．admitted |
| C．admitting |
| D．to admit |