tony spent 20 dollars last month.tim spent 30 dollars last month

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• tony spent 20 dollars last month.tim spent 30 dollars last month
• tony spent 20 dollars last month.tim spent 30 dollars last month改同义句tony----spend as ------pocket money as tim did last month
• it seems that she knows everything It's not easy for them to work out that problem.改同义句：1.It seems that she knows everything.She ____________________ everything.2.It's not easy for them to work out that problem.______________that problem ____________________not easy for them.3.last month she spent 100 dollars on her new MP4.Last month she ___________100 dollars ________________her new MP4.
• 英语翻译
• 一个圆锥形沙滩，底面积是3.6平方米，高是2米，将这些沙铺在长4米，宽2米的沙坑里，能铺多少米厚？