---The best time Wuxi is in spring.
---Yes, I think so.
| A．visits | B．to visit |
| C．visit | D．visiting |
He managed to become a great inventor ___ he left school at 16.
| A．no matter | B．so that |
| C．even though | D．as long as |
Yesterday morning I was just leaving_________the telephone rang.
| A．when | B．while | C．because | D．since |
---What’s wrong with you, Dave?
---My homework can’t be __________ on time because I’ve left it at home.
| A．given out | B．got over |
| C．showed up | D．handed in |
We can’t work out the physics problem. Can you tell us ____?
| A．how to do | B．what to do it |
| C．how to do it | D．what should to do |
— What did you do last Sunday?
—_____________________.
| A．I am doing my homework. |
| B．I was busy. |
| C．I have a good time. |
| D．I stayed at home and watched TV. |