Nuclear energy may be dangerous if
| A．controls | B．not controlling | C．not controlled | D．controlled |
When the expression first came into being, people refused to use it but _____ they began to accept it.
| A．usually | B．gradually |
| C．frequently | D．quickly |
Everybody has ______ to play _____ our environment.
| A．a part; to protect | B．a role; in protecting |
| C．part; in protecting | D．a role; to protect |
She pretended to be calm but _______she was more than nervous at the time she was being questioned.
| A．in actual | B．actually |
| C．as matter of fact | D．in a fact |
She didn’t come to his birthday party just ______what he had said to her the day before.
| A．because | B．because of |
| C．as result of | D．thanks of |
If you can’t _____ a better plan, we have to carry out the present one.
| A．come along with | B．come up with |
| C．come across | D．come about for |