—I did not know you were good friends.
—You__________. I have known her since she moved here. You were abroad then.
| A．may have | B．needn’t have | C．couldn’t have | D．must have |
To my great joy．I got a chance to take a photo with Andy after the vocal concert, which I _____forward to for years．
| A．have been looking | B．had been looking |
| C．looked | D．had looked |
Li Ming, don't forget to turn off the lights before you leave the office, _____?
| A．won't you | B．should he | C．shall we | D．will you |
_____ is well known to the world is that China has very top technology in space industry．
| A．It | B．As | C．What | D．Which |
With two children _____ high school, the farmer couple have to work from morning till night．
| A．attended | B．being attended | C．attend | D．attending |
—You seem to have had a wonderful winter holiday!
—Yes．Really warm days during the Spring Festival．My parents and I _____ to several tourist spots．
| A．are driving | B．drove |
| C．have been driving | D．will drive |