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
Hiking is _____ great fun. You will get close to ____ nature and take exercise at the same time.
A. a; the B. a; 不填 C. 不填；the D. 不填；不填
