.In order to prevent the fire spreading, some of the houses nearby _____before the firemen arrived.
| A．have been pulled down | B．have pulled down |
| C．had been pulled down | D．had pulled down |
Progress so far has been very good. ______, we are sure that the project will be completed on time.
| A．However | B．Otherwise | C．Therefore | D．Besides |
________in a famous university is what most students wish for.
| A．To educate | B．Educated | C．Being educated | D．Educating |
—Robert is indeed a wise man.
—Oh, yes. Howoften I have regretted ________ his advice!
| A．to take | B．taking | C．not to take | D．not taking |
______of the people on the Net _____ WenZhou will recover from the loan crisis(借贷危机) in time.
| A．Fourfifth；believes | B．Fourfifth；believe |
| C．Fourfifths；believe | D．Fourfifths；believes |
— Is it my age ______ the boss minds?
—I’m afraid so. He will consider _____ necessary to have an experienced assistant.
| A．which；it | B．that；it | C．which；that | D．that；that |