Ⅰ.单词拼写
根据汉语或首字母提示，写出下列单词
1．Scientists are hoping for a breakthrough(突破) in the treatment of cancer.
2．It is said that your team will be asked to undertake(承担) the research.
3．Seeing other kids casting(投；掷) small stones into the stream，the little boy also tried to do the same.
4．People's tastes in music differ(不同) from person to person—some are fond of classical music while others enjoy pop music.
5．I could not find the exact(准确的) words to express my feelings at that time.
6．Don't bother your father about it now；he's very tired.
7．It is rather difficult for them to obtain another chance to give a performance in the city hall.
8．It is unfair that the upper class should continue to accumulate wealth.
9．The students voiced a strong objection to the new plan.
10．Look at the sign.Smoking is forbidden in this shopping mall.
