题目

Many teens don’t get enough sleep because they have ____ homework, ____makes them stay up at night.        A. much too; which         B. too much; that          C. much too; what    D. too much; which       答案：D —We can see the sign        in the public places. What does it mean? —It means________.   A. NO PHOTOS           B. NO FISHING     C. NO PARKING          D. NO SMOKING