25. They suggested that the professor ______ just now ______ chairman of the meeting.
| A．referring to; was made | B．referring to; be made |
| C．referred to; be made | D．referred to; was made |
The manager, _______ it clear to us that he didn't agree with us, left the meeting room.
| A．who has made | B．having made | C．made | D．making |
I'm moving to the countryside because the air there is much fresher than _______ in the city.
| A．ones | B．one | C．that | D．those |
While watching television, _______.
| A．the doorbell rang | B．the doorbell rings |
| C．we heard the doorbell ring | D．we heard the doorbell rings |
Only after my friend came _______.
| A．did the computer repair | B．he repaired the computer |
| C．was the computer repaired | D．the computer was repaired |
He expressed a hope _______ he would visit China again the next year, and this was the very hope _______ he would express as soon as he arrived in the country.
| A．that; that | B．which; which | C．that; which | D．which; that |