How much time did you spend __________ the text.

　 A. copying　　　 B. to copy　 C. in copy　　　 D. on copying

——May I put my luggage on the seat beside you, sir?

　 ——____.

A、Sure, with pleasure B、Okay, please yourself C、Well, never mind D、Yes, help yourself

Don’t smoke in the bedroom. It’s _________( 難聞的).

Generally speaking, people _________（趨向于）to need less sleep as they get older.

It was in the small house _____ was built with stones by his father _____ he spent his childhood.
  A. which; that     B. that where      C. which; which     D. that; which  

I smoke out of ____ habit, not for ____ pleasure; for I have been in the habit for twenty years.

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

The rapidly growing birth rate brings about a lot of environment problems, which the government is supposed to take ________.

A. significantly  　　　 B. severely 　　　　 C. earnestly 　　　 D. seriously

It was _____ cold winter night,____ pale moon hung low in ____ sky.

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

I should very much like to have gone to that party of theirs, but ＿＿.
A. I’m not invited                 B. I was not invited
C. I have not been invited         D. I had not been invited

–Oh, I’ve missed a good chance.

--Yes. You ______ the job when it was offered.

A. should have taken B. should take　 C. might have taken D. must have taken