单词拼写根据所给首字母或汉语写出空缺处单词的适当形式，使句子完整，语法正确，每空

问题：

单词拼写根据所给首字母或汉语写出空缺处单词的适当形式，使句子完整，语法正确，每空一词 (共10小题；每题0.5分，满分5分)

The Great Wall was first c__小题1:___ in the north of China over 2,000 years ago.

The main d__小题2:___ of the Internet are that it has too much information that has not been evaluated for accuracy and that it is transforming the way people spend their time.

A large number of copies of the novelist’s latest work have been sold as soon as it was published; it is really a b__小题3:___ book.

Jim just graduated from college and he was not sure whether he had the q__小题4:___ for the job, but he applied for it anyway.

Formal dress is not required at this party — you may come in c__小题5:___ clothes.

At the end of the lecture, the whole audience __小题6:___ (鼓掌) the speaker for his wonderful speech.

I think I’d better apologize to him tomorrow for not keeping the __小题7:___ (预约).

Two explosions occurred near the Boston Marathon finish line, at least 6 people injured， which was really __小题8:___(令人难以置信的).

It is unwise to ___小题9:__ (牺牲) our environment for more economic profits.

As the first lady, Peng Liyuan made her diplomatic debut (初次露面) with an __小题10:___ (优雅的) image that has impressed the public.