- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.
| A．if | B．unless | C．until | D．when |
---______ a small plane in the future? ---Yes, I think so.
| A．Will everyone have | B．Is everyone having |
| C．Has everyone have | D．Does everyone have |
Tony gets up very late in the morning, ______ he is often late for school.
| A．because | B．so | C．but | D．or |
What will you be like ______？
| A．in twenty year time | B．in twenty years time |
| C．in twenty year’s time | D．in twenty years’ time |
I think there won’t be ______ schools in the future.
| A．a | B．some | C．any | D．a lot |
I think he will come back ______ three days.
| A．in | B．for | C．during | D．after |