–On, no! There isn’t any sugar left.
--_________. I’ll buy some when I go into town.
A. Good idea B. Never mind C. Go ahead
When the teacher came into the classroom, the students ____ in groups.
| A．work | B．have worked | C．were working | D．are working |
In 2000, we ____ to the Great Wall and had a good time there.
| A．go | B．went | C．will go | D．have gone |
Frank asked his father ____ a new bike for him and his father said OK.
| A．buy | B．to buy | C．buying | D．bought |
—Must I go there right now, mum?
—No, you ____. You can go there tomorrow.
| A．shouldn’t | B．can’t | C．mustn’t | D．needn’t |
— Do you like this shirt?
— Yes, ____ I don’t like the color.
| A．but | B．and | C．or | D．so |