the house fell down as soon as he ------- the house

the house fell down as soon as he left leave) the houseas soon as解释为一。。。就。。。前后主句从句时态一致,都用一般过去式 再问： Lucy sings well , and so does Lily。 同义句 _______ Lucy ______ Lily sing well 。 再答： Lucy sings well , and so does Lily。 Both Lucy and Lily sing well 。