学科：高中英语
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发布时间：2010-07-07
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资源简介：21. In face of _______ failure , it is the most important to keep up__________good state of mood .
A. /; a B. a; / C. the; / D. /; the
22. Most animals have little connection with animals of a different kind , _______ they hunt them for food .
A. if B while C. unless D. as
23.＿＿＿＿ Sunday, the students are at home.
A. Being B. To be C. It is D. It being