( ) Tom is a worker. He _______ in a factory. His sisters _______ in a hospital.
| A．work; work | B．works; work |
| C．work; works | D．works; works |
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.