1．Can you ____________(解释) the meaning of what he remarked at the end of the meeting?
答案：interpret
2．We’ll get in touch with you as soon as a decision is made ____________(关于) your application.
答案：regarding
3．He was full of ____________(雄心) to become a great scientist and made up his mind to work harder.
答案：ambition
4．He began to ____________(创作) music at an early age, which showed his gift.
答案：compose
5．Only when theories are ____________(联合) with practice can we know how they work.
答案：combined
6．He felt greatly ____________(使沮丧) at the news that he had been turned down by the company.
答案：depressed
7．What ____________(特征) differ the Americans from the Canadians?
答案：characteristics
