54._________A. areB. will beC. isD. was

Twenty miles______a long distance.A．areB．wereC．isD．was

【C6】______A．areB．to beC．be.D．is

I dont want______any misunderstanding between us.A．there beingB．there to beC．there isD．the

It was imperative that I _____ as close as possible.A:beB:will beC:wasD:am

The young man speaks Japanese fluently as if he______a Japanese.A．wereB．would beC．isD．had

No one can prove that the earth _____ not round.A.is beingB.is to beC.isD.has been