--Is your father a teacher?
---well, he _______.
| A．used to | B．was used to | C．used to be | D．is used to be |
---Don’t play with fire. It’s dangerous.
--- ____________.
| A．Yes, I do | B．Yes, I will | C．No, I don’t | D．Sorry, I won’t |
He has ____________ friends in the school. He is unhappy.
| A．a few | B．few | C．a little | D．little |
You must remember that you ______________ feed the fish much.
| A．don’t need to | B．needn’t to | C．don’t need | D．not need |
It’s important __________ fire.
| A．to care | B．be careful | C．to be careful | D．to be careful with |