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（友情提示：鼠标拖选单词即时翻译）
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
24. In front of the farmhouse ______.
A．lay a poor man B．laid a poor man
C．a poor man lay D．did a poor man lie
25. the weather ,the sports meet will be held on time .
A. Instead of B. In relation to C. Regardless of D. In favor of