they often go for a walk the open air .a.in b.at c.on d.to

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• they often go for a walk the open air .a.in b.at c.on d.to
• 补充英语短文The weather is probably the best subject to start a conversation in England because it often c____.Summer is a pleasant s____.The sun shines.There's no wind and there are no clouds in the s____.It is possible for people to walk and play in the open air,or go to the seaside to have a r___ there,The average temperature is about 55.5 degrees a____ zero,The days are kibg and get dark late.When fall comes,the days get s____ and become cooler,The sky
• 英语单项选择：1.She has a lot of housework﹍﹍today.单项选择：1.She has a lot of housework﹍﹍today.A.do B.did C.doing D.to do2.﹍﹍do you have an English party?Twice a month.A.How long B.How often C.How soon D.How far3.When will Mr White come to Hefei?﹍﹍August 1.A.In B.At C.To D.On4.We enjoyed ﹍﹍at the party last night.A.us B.our C.ours D.ourselves5.Let’s go out for a walk .﹍﹍?A.shall we B.will you C.do you D.did we6.Would you like to go to the beach with us?﹍﹍A.Yes,I
• 一.选择正确答案：1.Now many children learn to play__piano at weekends.a.an b.the c.a d./2.Mary is not good at Englihs.So David often helps___.a.she  b.her  c.he  d.him3.It's time__to school,Peter.a.going  b.to go  c.for  d.went4.There is no ink.Please buy__for me.  a.two bottles of ink  b.two inks  c.two bottle of ink d.two ink5.__do they cost?  a.How much  b.How  C.What  d.How many6.The students often do eye exercises__the morning.  a.in  b.at  c.on  d.for7.
• 根据首字母填单词Weahter is probably the best topic to start conversation in England because it often c____ .Summer is a pleasant s________.the sun shines .There is no wind and there are no clouds in the s____It is possible for people to walk and play in the open air,or go to the seaside to have a r_____.The average temperature is about 55.5 degress a_____ zero.the days are long and get dark late.When fall comes ,the days get s______ and become cooler.The sky
• they often go for a walk the open air .a.in b.at c.on d.to
• log2^2与（log2）^2一样吗?有什么区别?log5×log20＋log^2等于多少 要有计算过程log2^2与（log2）^2一样吗?有什么区别?log5×log20＋log^2等于多少 要有计算过程log5×log20＋log2^2等于多少 要有计算过程
• 设M=a+【1/a-2】(2