becase as for because of的区别

becase as for because of的区别 he felt sad very much -------his failing to passthe exam.becase ,so ,becase of ,as. he felt sad very much -------his failing to pass the exam.becase ,so ,becase of ,as. you are not allowed to play football,_____you finish your homework at once .A as B for C becase D unless becase lt is good for my heatch是什么意思? becase i want to be rich and buy a big house for my parents This is partly why,though people talk a lot ,the number of companies whis work-at-home programs____ small.A.remain B.remaining C.remains D.hasremainedThe day must be breaking,_____the birds have begun singAging.A.becase B.as C.for D.since我需要详 as for as for I was stopped by a traffic policeman for the speed at driving by me becase was too high as for as becase it rained today lm dont happy becase so for as for The reason___his coming to China is_____he wants to study in China.A.why;that B.why;becaseC.for;that D.for;becase My love for you for every!So when i am die,I want to become a crystal!Becaus这句话什么元素? for as long as it as to as for区别