—Are you sure you have to? It’s been very late.
—I don’t know ______ if not now.
| A．where can I do it | B．why did I do it |
| C．when I can do it | D．how I will do it |
They like _______ after school.
| A．play the basketball |
| B．play basketball |
| C．to play the basketball |
| D．to play basketball |
—I lost my dictionary.—Let me ______ you look for it.
| A．help | B．helps |
| C．helping | D．to help |
The blue hat is 10 yuan, and the black hat is ______ 10 yuan.
| A．also | B．too | C．very | D．more |
We have sweaters ______ all colors _____ $ 5 each.
| A．at; in | B．in; at |
| C．in; for | D．at; for |
We sell our clothes _______ very good price.
| A．on | B．in | C．at | D．For |