Without electricity human life ________ quite different today.

A. is                                                             B. will be      

C. would have been                                      D. would be

You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.

A. might            B. need             C. should             D. would

--- Have you finished the report?

　--- No. I ______ it all this week.

A.will do                               B.had done

C.have done                            D.have been doing

After he left college, he was employed in an international company and __________ there ever since.

A.worked             B.has worked          C.had worked        D.was working

By _____, water can be changed into gas.

A.heating?         B.being heated?     C.having heated?     D.heated

Some kinds of animals can _______ the colour of their surroundings.

A. take on            B. dress up   C. put on             D. get into

He will never ______ anything if he doesn’t work hard.

A. hope                      B. wish  C. achieve                D. succeed

We’re so busy that no one in the office can _____ for any other work.

A. spare        B. be spared  C. share      D. be shared

---“John took a photograph of you just now.”

-----“Oh, really? I ______.”

A. didn’t know                                          B. wasn’t knowing

C. don’t know                                          D. haven’t known

I left my pen on the desk and now it’s gone; who _____ it?

A. took                    B. has taken  C. will take              D. had taken