.
Mr Smith has bought a new house in the country, around___________some green trees.
| A．which is | B．it is | C．which are | D．them are |
—Why were you not at the concert?
—I________ a close game between two European football teams.
| A．watched | B．had watched |
| C．was watching | D．have been watching |
We_______onitforseveralhoursbutwehavenotyetreachedanyconclusion.
| A．work | B．areworking |
| C．havebeenworking | D．havebeenworked |
I ____ to go for a walk, but someone called and I couldn’t get away.
| A．was planning | B．planned | C．had planned | D．would plan |
Salley________Beijing for Shanghai and________there ever since. You can go and pay her a visit on your way to Hangzhou.
| A．has left; worked | B．left; worked | C．has left; had worked | D．left; has worked |
—Why do you look so worried?
—Fred left the company half an hour ago. His work _______ unfinished since.
| A．left | B．was left | C．has left | D．has been left |