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1. It is recommended that ____________________ （工程不动工）until all preparations have been made.
2. ___________________________ （而不是让蔬菜烂掉），he sold them at half price.
3. ___________________________ （这个陌生人占这位年轻姑娘的便宜）and cheated her out of five dollars.
4. _________________________ （事实既然如此），there are no grounds to justify your complaints.
5. We ___________________________________ （已投入所有的时间和精力）in this plan, and we don’t want it to fail.
