What wonderful world it would be if all countries in the world could live peace with one another．
| A．a; \ | B．the; \ |
| C．a; the | D．the; the |
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 |
With the word “ PM2.5” _________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
| A．constantly | B．consequently | C．permanently | D．immediately |