— Kitty, do you know ______?
— Sure, about forty minutes.
| A．when did their class meeting begin. |
| B．where their class meeting was held |
| C．how often their class meeting is held |
| D．how long their class meeting will last |
My parents enjoyphotos. They always go out with their cameras.
| A．take | B．took | C．to take | D．taking |
My brother_____ homework at home yesterday.
| A．does | B．doing | C．do | D．did |
Hehave a picnic in the park this week.
| A．would | B．must |
| C．is going to | D．are going to |
—Sam，shall we go and meet our new classmate?
—Sorry．I __ go now. My father is waiting for me
| A．need | B．may | C．would | D．must |
They must go home on foot，they missed the last bus.
| A．or | B．but | C．because | D．so |