选出正确的答案填空填入as,because,since,while,though(although),if,as soo

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选出正确的答案填空
填入as,because,since,while,though(although),if,as soon as,before,until,unless,where,than,as long as,even if
38.__________he did not know very much English,he looked up the word in the dictionary.
39.She will speak to you __________.You come in.

38.(Since/Because) he did not know very much English,he looked up the word in the dictionary.
39.She will speak to you (when) you come in.

选出正确的答案填空填入as,because,since,while,though(although),if,as soo 谁知道however,but,though ,although,while ,as ,since,for,的区别选词填空：although,because,so that ,while,if,until,before,as soon as if,even though,even since,的意思? though,although,as,even if,even though有何区别? 用when、after、before、as soon as、if、because、so、although填空. unless,if,after,as if,so that,because,since,while,befor,so.. though although while as四者当虽然讲时的区别请问在高中英语中,表示因为时,as,for,since的区别.以及表示尽管时although,though,as,whi 区别if,unless,as long as,once,although,though,even if,whenever as,as if,as though,like的区别 as^though于as^if