In the last twenty years, seven Canadian scientists _____ the Nobel prize!
| A．won | B．had won | C．was winning | D．have won |
Sang Lan was so seriously injured that she was ______ to a top hospital in New York.
| A．rushed | B．rushing | C．going | D．gone |
We were talking and laughing, when our teacher came in and asked us what all the ______ was about.
| A．excite | B．exciting | C．excited | D．excitement |
The elevator _________ and we were trapped inside for half an hour.
| A．broke off | B．broke in | C．broke out | D．broke down |
--- Jim failed again in the maths examination.
--- Don't scold him too much. _____ , he has tried his best.
| A．After all | B．Above all | C．At all | D．In all |
The conference has been held to discuss the effects of tourism ______ the wildlife in the area.
| A．in | B．on | C．at | D．with |