The scientists are trying to ___ natural energy to decrease air pollution.
| A．make friends with | B．make full use of | C．make notes of | D．make into |
Look ! There are so many mistakes in your composition . You ____ have paid attention to it.
| A．may | B．must | C．can | D．should |
At the conference , political leaders from many countries promised to work together to defend the world ________ terrorism and other threats.
| A．for | B．without |
| C．against | D．beyond |
______ these new treatments , people with high blood pressure can live a long and active life .
| A．According to | B．Thanks to |
| C．As for | D．Instead of |
__ Sally , our monitor , was late for class this morning .
__ _________ ? As far as I know , she never came late for class.
| A．How come | B．what for |
| C．So what | D．Why not |
The questionnaire takes _________ ten to fifteen minutes to complete and can be used along with the assessment interview.
| A．mainly | B．exactly |
| C．approximately | D．precisely |