Why the explosion occurred was ____the laboratory attendant had been careless.
| A．for | B．because | C．since | D．that |
The third women’s conference ______ in the USA this summer talked about women’s rights in the developing countries.
| A．to be sponsored | B．sponsoring | C．sponsored | D．was sponsored |
Despite the fact that he has lived in China for many years, Mark still can not______ himself to the Chinese customs.
| A．adapt | B．account | C．adopt | D．accept |
When it______the writer’s pastime, I was reminded______of the writer’s love of the sea.
| A．came to; once more | B．talked to; once more |
| C．refers to; again and again | D．took up; once again |
The shoe was discovered on the Chilkoot Pass, the famous trail used by people ______ gold in Alaska.
| A．looking | B．finding |
| C．searching | D．seeking |
Mr Black was driving fast to take his wife to a nearby hospital because their baby was ________.
| A．on its way | B．in the way |
| C．by the way | D．out of the way |