用所给的适当的形式填空

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• 用括号内所给词的正确形式完成短文For ____(us)vacatian we went to Arizona(亚利桑那)in the USA.We went on a river trip on the ____(one) day.we did ___(any) boating (划船）.On the second day,we___(walk) in the mountains and we ___(do) some horse riding(骑马). The food there ____(be) also great. It was a great vacation ,but it was too short ! We___(want) to go there again but there ___(be not )enough time.
• 用所给词的正确形式,完成短文remain late harm worth valuable favourite result risk person suggestWe know your____author .this information is very_____to companies and increasingly it is big business.the US online advertising market was______ over US $12 billion last year the small adverts it put next to your search _____.Google might offer you can an ad for the _____Hollywood blockbuster.it sounds _____but some people are worried about privacy issues.Google might of
• 按所给词的正确形式填空：how many____( film)do you plan to buy?原因,翻译,
• 用所给单词的正确形式完成短文too,each,think,sell,buy,feel,eat,pass,give,pay Jack and Bill are both seven years old.One day they went out to( )pies together.Before they went out,Jack's mother told Jack,"You take twelve pies,and sell them for five cents ( ).You mustn't eat them,and you mustn't ( ) any of them to othera." Bill's mother told Bill the same words.They went to town together.But after a whole morning,Bill sold only one pie.Bill ( )very hungry,but
• 根据所给词的适当形式填空,补全句子.1.the bed is 2 meters in _____ (long).2.give our _____ (greet)to the people in sichuan.3.——would you like to make _____ (friend)with me?——of course.4.there are seveal _____ (magazine)for you to choose from.
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• 用所给单词的适当形式完成短文In the future,we (have) a lot of tree time.Everyone (have) a small car.It (be) hot all year so the winter (be) very short.There (be) heavy rain in spring and autumn.And our homes (be) warm in winter and hot in summer.We (feel) very comfortable.And no one (do) heavy and difficult jobs,because robots (help) us do the work.I think we (have) a good time at that time.
• 用所给词的适当形式填空,完成句子6年级20道如：I --- (GO) TO THE CINEMA TOMORROW
• 用所给词的适当形式填空,补全句子1.Thank for telling me the ______（excite）news.2.When he got back home ,he______（quick）turned on the TV.3.The dinner______（cost）him 100 yuan last night.4.A police patrol car stopped in front of us and three______（policeman）came out of it.5.Mr White was very angry and shouted in one of the______（boy）.6.Let ____（buy）some fruit and drinks for the party.7.He tries ____（find）a better way to deal with the problem.
• I have a lot af homework_____(do）用括号内所给词的适当形式填空
• an的前n项和Sn,a1=1,an+1=(n+2)/nSn,证数列Sn/n是等比数列和Sn+1=4an1、A(n+1)=(n+2)sn/n=S(n+1)-Sn 即nS(n+1)-nSn=(n+2)Sn 为什么A(n+1)=S(n+1)-Sn ,S(n+1)-Sn不是应该等于 An吗怎么会是An+1啊
• 数列an的前n项和为Sn,已知a1=1,an+1=(n+2)/nSn.求证：（1）数列{Sn/n}是等比数列（2）Sn+1=4an