— is the population of your home town?
— Sorry. I’m not sure about that.
| A．How much | B．What |
| C．How many | D．How |
Nobody knows ______ yesterday.
| A．how the accident happens |
| B．how does the accident happen |
| C．how the accident happened |
| D．how did the accident happen |
The park gates ______ at 10：00 every evening.
| A．lock | B．locked | C．are locked | D．were locked |
Mum told Andrew ______ quiet in the museum.
| A．keep | B．to keep | C．keeping | D．kept |
My uncle is a writer. He ______ many books since he was young.
| A．writes | B．wrote | C．is writing | D．has written |
I ______ you a copy of the report as soon as I finish it.
| A．send | B．sent | C．will send | D．has sent |