Some of my friends are interested in science, but none of them can tell ________.
| A．when UFOs appeared next time |
| B．that horses know the way or not |
| C．where was this kind of plant found |
| D．how elephants communicate |
None of us _____ running, but we all like swimming.
| A．likes | B．liked |
| C．liking | D．would like to |
—Is _____ ready for the trip?
—No, we haven’t got a camera.
| A．nothing | B．everything |
| C．something | D．anything |
The cleaners must keep the street _____.
| A．from getting dirty | B．to dirty |
| C．to get dirty | D．getting dirty |
We must plant more trees after we _____ every year.
| A．cut off them | B．cut them off |
| C．cut down them | D．cut them down |
_____ everybody likes watching TV in my family. My parents like doing outdoor activities.
| A．No | B．Not | C．None | D．Nobody |