用化学符号填空

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• 标点符号换位置,改变原意思!列如：1.你赞成,我不赞成!2.你赞成我?不赞成!3.你赞成我不?赞成!请帮我用“下雨天留客,天留,我不留.”“大米不买给八路军.”“这样行不行?”接着各写两句,
• 亲们快来~几道时态填空题/这一课的题目是现在完成时.1时态填空：1）There____________(be)great changes in Shanghai during the past decade.Shanghai _________________(become)more and more beartiful .2)The German engineer ___________________(collect)a lot of Chinese stamps since he came to China,for he _________________(appreciate)Chinese history and culture2用have/has been (to) ,have/has been in ,have/has gone to 填空Where is Sara?She_____1_____Australia.Sounds great.___2_she ________2____
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• __the sun __(rise) tomorrow?yes,of course.____the sun ____(rise )every day?yes,of course.用括号内适当形式填空.
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