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1. The professor required that ________________ (我们交研究报告)by Wednesday.
2. Though a skilled worker， _______________ (他被公司解雇了)last week because of the economic crisis.
3. It was reported that 65% of traffic accidents in this city _______________ (是由行车不慎造成的).
4. ________________(希特勒是武装到牙齿的)when he launched the Second World War，but in a few years，he was completely defeated.
5.They are having a discussion ________________(目的是寻找改善质量的途径).
