They eat only plant foods, and take care to ________ animal products from other areas of their lives．
A． contain B． maintain
C． exclude D． Include
— Could you please explain the assignment for Monday, Miss Smith？
— Certainly. Read the next chapter and come to class ________ to discuss what you’ve read.
A． preparing B． prepared
C． to prepare D． to be prepared
Home is ________ somebody notices when you are no longer there.
A． that B． when C． how D． where
—Mom！Jack has broken a cup！
—Doesn’t matter. Accidents ________ happen.
A． should B． must
C． will D． Shall
The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.
A． until B． though
C． because D． Unless
Directions: Write an English composition according to the instructions given below in Chinese．
复旦大学一研究生因平时琐事和同学不和，在寝室饮用水里投毒，导致一室友死亡。作为即将踏入大学校门的你，谈谈和同学和谐相处的重要性以及你的一些建议。
注意：1．词数不少于120个；
2．不能使用真实姓名和学校名称,
3．文章开头已给出, 不计入字数。
A graduate of Fudan University didn’t get on well with his roommates for trivial．So he put some poison in the drinking water, killing one of his roommates．
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