—Can you come to my party on Saturday afternoon?
—___________. I’ll have to help my parents.
| A．Sorry, I can’t | B．Yes, I’d love to | C．Let’s go | D．No, I don’t think so |
Our teacher said the earth ________ around the sun.
| A．went | B．go | C．goes | D．is going |
I hope there will be ___people and _______pollution in the future. Then our lives will be better.
| A．more, fewer. | B．fewer, less. | C．less, more | D．most, lest |
—Must I take out the trash?
—No, you ________.
| A．need | B．needn’t | C．couldn’t | D．shouldn’t |
We will visit the Summer Palace if it tomorrow.
| A．will rain | B．rains | C．won’t rain | D．doesn’t rain |
What_____ you _____at eight yesterday evening?
| A．have, done | B．did, do | C．were , doing | D．are, doing |