The boys ____ a football match tomorrow morning.
| A．are having | B．will have | C．had | D．have had |
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 |