综合填空: 根据短文内容选择方框内的单词,并用其正确的形式填入空白处(每空填一词)，使补全后的短文意思通顺，语法正确，结构完整。

You work hard to learn English. Do you know American kids are   小题1:  to learn Chinese? About 50,000 American students now study Chinese. “Because of China’s fast growth, Chinese is more    小题2:  than the other languages,” said Scott McGinnis, a Washington language expert.(专家)

For example, in 1999, only three Chicago schools had Chinese classes. This year more than 20 do. In many US cities, students take Chinese lessons at school or at weekends. But Chicago schools teach Chinese     小题3:  the regular day. Last year China gave them 3000 textbooks because they had    小题4:   a good job.

Although Chinese classes are becoming popular, it is one of the most difficult languages. It takes an English    小题5:  about 1320 hours to become good at Chinese, but he needs only 480 hours for French, Spanish or Italian.

在下面横线写出常用的天气符号表示哪种天气