Mr. Barren doesn’t think that all bad language should be allowed. In his opinion, there are ___________ that should be kept up.
| A．degrees | B．levels | C．limits | D．standards |
__________him not to do so, he wouldn’t have made such a serious mistake.
| A．Did I persuade | B．If I persuade | C．If I should persuade | D．Had I persuaded |
Scientific researches show that to __________ a language one had better often get exposed to it.
| A．acquire | B．access | C．acknowledge | D．assess |
To reduce emissions of greenhouse gases, many countries are increasing the use of natural gas, wind and other forms of _______ energy.
| A．abandoned | B．original | C．alternative | D．precious |
In most cases, college graduates don't mind what job they will do so long as it is one ______ they can earn money to support themselves.
| A．what | B．where | C．that | D．how |
__________ our efforts to save houses dating back to the Ming Dynasty, the local government decided to pull them down to build modern buildings there.
| A．In case of | B．In spite of | C．In terms of | D．In praise of |