A long time ago, I _______ in London for three years.

[单选题]A long time ago, I ________ in London for three years.A.had lived B.have li

[单选题]I first met Lisa three years ago when we ________ at a radio station together.A．have worked B.had been working C.were working D.had worked

[单选题]The operationcould [prolong] his life by two or three years.A.broadenB.wors

[单选题]As a productivewriter,he [turned out] three novels these years.A.producedB.

[单选题]Passage OneLong time ago, the ancient people could not travel to any far away places for they had no vehicle to carry them across the wide oceans, deep valleys, long rivers or high mountains.Nowadays people take advantage of steamships, trains, airpl

[单选题]He( )with Smith at least four times in the past three years.A.has been seen

[单选题]He( )with Smith at least four times in the past three years.A.has been seen

[单选题]B．Three years ago, five parrots were set free in a wild place of Arizona, thousands of miles from the Channel Islands in Jersey where they had been looked after by zookeepers. No evolutionary strategies informed them how to behave in this new landsca

[单选题]The output of our factory is now twice _____it was three years ago.A.whatB.

[单选题]By the end of this year Mr. Smith _____in our company for exactly three yea