In the past decades, sea ice ______ in the Arctic as a result of global warming.
| A．had melted | B．has been melting | C．melted | D．is melting |
She couldn’t help, even though she tried not to, ____ at the strange clothes her friend was wearing.
| A．to laugh | B．laugh | C．laughing | D．laughed |
Only when _________________________.
| A．did he arrive the meeting began |
| B．he arrived the meeting began. |
| C．did he arrive did the meeting begin. |
| D．he arrived did the meeting begin. |
According to news reports, personal ____ of guns in the USA causes a lot of trouble.
| A．wealth | B．possession | C．matter | D．problem |
---Did you go to the cinema last night?
---Well, I had ____ to , but it was raining too hard.
| A．forgotten | B．expected | C．intended | D．wished |
Sorry, we are late,--our plane was _____ because of the heavy rain.
| A．held out | B．held on | C．held up | D．held back |