Great changes have taken place since then in the factory _______we are working.

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

In the middle of the night, we ______signals for help from another ship.

A. picked out     B. picked up      C. picked on      D. picked at

—Did you find the missing couple in the mountain yesterday?

—No, but we ________ to get in touch with them ever since.

A. have tried      B. have been trying C. had tried       D. had been trying

— Kate doesn’t look very well. What’s wrong with her?

— She has a headache because she ________ too long; she ought to stop work.

A. has been reading    B. had read   C. is reading          D. was reading

Let’s keep to the point or we ________ any decisions.

A. will never reach   B. have never reached  C. never reach      D. never reached

The house is lighted ____ electric light.

       A. by      B.to       C.in      D.with

After months of voyage, Columbus arrived in_____ later proved a new continent.

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

Later they discovered, ____ was news to him, that Pamela was the headmaster’s daughter.

A. that    B. which   C. what   D. who

For many Beijingers, dreams of living in ___________ green area are becoming___________ reality.  

A. a; a          B. the; the      C. 不填;不填       D. 不填;a

---May I have a copy of Lu Xun’s short stories?

        ---Certainly. ___.

     A.It is here    B.Here are you     C.Here you are   D. Here is