The operationcould [prolong] his life by two or three years.

I felt terribly sorry to learn that his sister_after having fought against cance

[单选题]His grandma ______in Beijing for many years.A.livesB.livedC.has livedD.was

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

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

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

The new power station is reported _____ within three years.A. to have completedB

The new power station is reported ______ within three years.A. to have completed

[单选题]Two events have [highlighted]the tensions in recent years.A.extendedB.empha

[单选题]Two events have [highlighted]the tensions in recent years.A.extendedB.empha

[单选题]The two classmates maintained their friendship for the next forty years.A.a