Please tell me how the accident _________ . I am still in the dark.

A. come to         B. come by              C. come across              D. come about

Jack always sleeps late on Sundays. I am sure he _______ when we get home.

   A. is still sleeping             B. is to be sleeping 

   C. will still be sleeping       D. will have been sleeping

The box ____ two meters by two meters and ____ a ton.

A. measures; is weighed         B. is measured; is weighed  

C. is measured; weighs          D. measures; weighs

It never occurred to humans until the mid-1990s ______ some animals can be cloned.

A. where                B. that                 C. when                 D. what

I’ll prepare more dishes_________ your guests decide to stay for dinner．

   A. in case              B. in order that         C. even if                  D. as if

Large quantities of information, as well as some timely help _____ since the organization was built .

   A. has offered           B. had been offered    C. have been offered        D. is offered

I am junior________my elder brother________four years.

  A.to, by          B.than, for         C.to, for       D.with, by

Was it the restaurant where he had dinner with me, if I may ask, _______offered him a job?

  A.that                B.where         C.which             D.when

He told me to ________, for he wanted to stay for a while all by himself.

  A.leave him behind                    B.leave him out

  C.leave him alone                 D.leave him off

________to such a big party can be a great honour for an ordinary person like me.

A.Being taken       B.Taken         C.Taking        D.Having been taken