一、 单项选择（本大题共15小题，每小题1分，共15分）
1. --- Is there anything wrong with my baby?
--- Nothing _____._____.
A. seriously; Take easy B. seriously; Take it easy
C. serious; Take easy D. serious; Take it easy
2. Many people are still in _____ habit of writing silly words in _____ public places.
A. the; the B. / ; / C. the; / D. / ; the
