—Which type of car do you like better?—       ．They are both expensive and high emission（高排量）．

—The exam was easy,wasn't it?—Yes,but I don’t think     could pass it.

It was hard for him to learn English in a family, in which _____ of the parents spoke the language.

—Could I smoke here?—I’d prefer _______if you don’t smoke in front of the children.

-----Who’s the writer of this short story?, Mark Twain or Charles Dickens? -----_____. It was written by a French woman writer.