（at,in,on,for） two hours 选谁,请说明原因.

（at,in,on,for） two hours 选谁,请说明原因. I want to buy two kilos （）applesMy grandparents like to travel （）planes,not （）trainA on B in C at D of E for F to G to H by on用法（in,at,for） i hope i can live in the country ( )another two weeks.in ,on ,for ,at/为什么选c? 1.There（ ）be a meeting ( )Friday.A.will,in B.is going,on C.will,on D.is going to,in2.He spent 40 yuan ( ) the jacket.A.in B.on C.at D.for3.My mother has gone to Shanghai.She will be back ( ).A.in two weeks B.after two weeks C.for two weeks D.two he bought a vase _ two million yuan.填in,at,on,for中的什么单词no in on for at的用法?^^ at,on,in,for各怎么用? inatforon各加什么? at on in for of的区别 _____different seasons(in on at for) I have already read two books _ two weeks.A for the last B at the last C in the last D on the last They need two players ( )their foodball club.They need two players ( )their foodball clubA.in B.at C.on D.for哪一个?为什么呢？ 用英语回答下列题目Riddles:1.What is smaller than an insect's mouth?2.What season is the most dangerous one?3.What's too much for me,just right for two,but nothing at all for three?4.On what day of a year do soldiers start wars in history?5.H 英语翻译If candy bars that regularly sell for 0.40 each are on sale at two for 0.75,what is the percent reduction in the price of two such candy bars purchased at the sale price? I see a doctor( )two（ ）the afternoon( )october 12用in,at ,of ,on填空A at，on of B at,in,in C in,on,of D A或B we like going for an outing_________windy weather.(on,in,at,for） What go on four legs in moring ,on two at noon ,and on therr evening