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.