—____ do the students exercise a week? —Once or twice.
A. How often B. Hong long C. How many times.
Grandfather doesn’t oftenSo he isn’t good in heath.
| A．exercises | B．exercise |
| C．to exercise | D．exercising |
My grandma ______ to see me .Please help me to buy some food.
| A．is coming | B．comes | C．came | D．coming |
----______are they staying in Beijing?
----For three days.
| A．How often | B．How long |
| C．How old | D．How soon |
---It’s a fine day. Why don’t you go camping with us?
----________. Let’s go.
| A．It’s difficult. | B．No, thanks. |
| C．Sounds fun. | D．Sure, you can |
I often go to school ________.
| A．ride my bike | B．by bike | C．by a bike | D．on bike |