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阶段滚动卷(二)
（建议用时：40分钟）
Ⅰ. 单项填空
1. The research is important it confirms the link between aggression and alcohol.
A. that B. by that C. in which D. in that
2. (2013·泉州模拟)With some technical problems to be solved, it may be a while
the system is put into use.
A. when B. after C. since D. before
3. (2013·江南十校模拟) our country developing rapidly, we become more confident in international affairs.
A. As B. Because
C. With D. Now that
4. As we all know, the force the earth attracts matter is called gravity.
A. to which B. for which
C. with which D. in which
