The mother who lost her son insisted that the careless driver for the traffic accident ___ yesterday .
| A．was to blame ; happening | B．be to blame ; happened |
| C．be blamed ; was happened | D．was to blame; had happened |
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 |