_____ you keep on trying, I really don’t mind whether you can come up top in your class.
| A．As long as | B．Even though | C．As soon as | D．The moment |
Compared with the generation of our grandparents, who grew up in an age when people were _____ in almost every kind of materials, we should be content with the abundant supply.
| A．lacking | B．curious |
| C．cautious | D．accurate |
To make contributions to the protection of the environment, the company encourages its workforce to make the _______ to alternative means of transportation such as carpooling or biking to reduce air pollution.
| A．switch | B．conclusion |
| C．variety | D．enquiry |
While I admit that English words keep escaping from our memory, constant ______ to them not only increases our understanding of them, but likely plants them into our mind.
| A．pressure | B．exposure |
| C．procedure | D．mixture |
Busy as he is, he ______ a few hours for exercise every day.
| A．sets off | B．sets about |
| C．sets down | D．sets aside |
Martin Luther King was happy to help because he knew it would help them ____ their dream of making black and white people equal.
| A．burst | B．finish |
| C．identify | D．achieve |