用所给词的适当形式填空（共10小题，每小题1分，共10分）
小题1:There are many (different) between the two girls.
小题2:We have to go shopping (two) a week, on Saturday and Wednesday.
小题3:There’s (little) air on the top of the mountain than that at the foot of it.
小题4:－What is the tall (build) next to the post office? －It’s a library.
小题5:Mike does his homework as (careful) as Mark.
小题6:Beijing is one of (beautiful) cities in China.
小题7:Where did you hear that (say)?
小题8:Which is the (far) city of all?
小题9:The water in the lake is becoming and . (bad)
小题10:I didn’t feel like (eat) anything this morning.