Contemporary English is quite different from Old English. There has never been a year the language was not changing.
| A．that | B．when | C．for | D．until |
If you take____risk of not wearig a seat belt, you are at___risk.
| A．the ;/ | B．/; / | C．/; the | D．the ; the |
Before traveling in space, you must know what it might feel like_____in an imaginary environment.
| A．to travel | B．traveling | C．to be traveling | D．travel |
She's really _____ yoga these days - she does three classes a week.
| A．going into | B．getting into | C．running into | D．looking into |
Since you can solve the problem,I don’t feel_____worthwhile taking such trouble.
| A．that | B．me | C．that | D．it |
The scientists are studying the effects of human activities______the environment.
| A．in | B．at | C．on | D．with |