几道英语单选问题(答案&解析)
-Do you remember the first time you ___witha foreigner
-Of course, I was too nervous to say a wordin English then.
A.talke B.had talked C.have talked D.aretalking

It’s impossible for me to finish such adangerous and ___task
A.annoying B.suffering C.demanding D.delighting

On the last Saturday of March every year, from8:30 to 9:30 pm, lights ____ around the world in a show of support forrenewable energy during Earth Hour.
A.go off B.turn off C.cut off D.switch off

Due to the widespread ____ of wechat, moreand more young people are addicted to the use of telephones
A.presentation B.application C.adaptation D.appreciation