1.They have made the oil and water_____from each other.
a.to separate b.separate c.to be separated d.to have separated
因為答案中沒有separated,所以想知道是不是要考make sth done 變形,不知道有沒有make sth to be done/to have done的說法.
2.would you be____to step this way,please?
a.too kind b.so kind c.so kind as d.as
這里的so...as 不應(yīng)該是否定同級比較,還是要考as to的用法,總之沒頭緒
3.The satellite is always escaping from the earth_____ back by gravity the same distance it has escaped.
a.to pull b.to have been pulled c.only to be pulled d.only being pulled
也是不太清楚這里應(yīng)該填什么成分,知道該填非謂語動詞,覺得這幾個好亂,完全沒頭緒.