Although I admire you _____ your work on soil, I think you should apologize _____the villagers for the water pollution.
| A．for; to | B．to; for | C．for; for | D．to; to |
While watching television, .
| A．the doorbell rang | B．the doorbell rings |
| C．we heard the doorbell ring | D．we heard the doorbell rings |
The rising frequency for smoggy days puts me into deep that maybe one day citizens will have to rely on masks to survive.
| A．doubt | B．worry | C．shock | D．faith |
The report has found that more and more Chinese have an American or British temporary visa for holiday spending in recent years.
| A．stood for | B．applied for |
| C．accounted for | D．searched for |
downloading of large numbers of apps is one of the most risky behaviors someone with a smartphone can engage in.
| A．Cautious | B．Public | C．Random | D．General |
As city boy accustomed to the concrete building, streams of vehicles and skies of smog, I found farm life “eye-opening” experience.
| A．the; a | B．the; an |
| C．a; the | D．a; an |