单项选择，根据所给单词，选出与其同类的单词。（5小题，每小题2分，共10）分
（1）brown
A.black B.bread
（2）crayon
A.orange B.eraser
（3）mouth
A.nose B.milk
（4）elephant
A.panda B.zoo
（5）juice
A.water B.fish
Apples are sweet _______ fall.
A. onB. inC. at
---__________?
---They are listening to music.
A. What do they do?
B. What are you doing?
C. What are your grandparents doing?
There is a call ____ you.
A. forB. onC. at
---______ do you like summer?
---______ I can swim in the river.
A. Why, BecauseB. Why, AndC. Which, Because
---What is Mike doing?
---He ____________.
A. runningB. swims in the riverC. is walking