问题描述: Please put up your hands if you konw the answer改为同义句 1个回答 分类:英语 2014-10-15 问题解答: 我来补答 Don't put up your hands unless ( 除非) you konw the answer或Please ( raise hands ) if you konw the answer.加油!不明白再问! 再问: Please—— ——if you konw the answer 只给了两个空怎么变呢 再答: Please(hands up ) if you konw the answer 展开全文阅读