找出下面单词中意思不同类的一个，把它的序号写到前面的括号里。
（ ）1. A. tasty B. sour C. thin D. salty
（ ）2. A. bedroom B. closet C. kitchen D. bathroom
（ ）3. A. village B. tree C. flower D. grass
（ ）4. A. fish B. tofu C. tomato D. road
（ ）5. A. curtain B. trash bin C. fresh D. mirror
My brother usually goes to school ______ foot.
A. onB. toC. by
I take music lessons in Children's Palace _____ every afternoon.
A. atB. onC. 不填
They look tired, _____ they?
A. don'tB. willC. are
We will get to Zhuhai at ______ six o'clock the next afternoon.
A. nearB. aboutC. beside
When _____ school start in the morning in Canada?
A. isB. doC. does