读一读选出不同类的单词。（每题1分，共5分）
（1）A. doctor B. elephant C. driver
（2）A. flower B. grass C. friend
（3）A. monkey B. park C.zoo
（4）A. subway B. taxi C.bathroom
（5）A. short B. tall C. tree
The dog can’t see his shadow. It’s _____him.
A. beside
B. behind
C. in front of
Can I __________my coat? It’s too hot.
A. put on
B. take off
C. put out
—You look sad. What’s the matter?
—_________.
A. It’s a key.
B. I can’t find my key.
C. How does it feel?
This packet of sweets _______very nice.
A. is
B．are
C．don’t
What’s that in the river? ___________________.
A. That’s a duck.
B．There’s a duck.
C．It’s a duck.