48.Yhe collapse of the building ( )its soft base. sulted in ffered from c.led to y in d49.Yhe engine of the ship was out of order.What”s wrose,the bad weather ( )the helpessness of the crew at sea. ded to sulated from c.turned out de up a50.The most important thing that ( )is not whether you fail or not,but whether you try or not. tters res nsiders d.minds a51.Nothing ( )after the terrible fire which had been caused by a cigar. mained ntinued c.left pt a請對每個選象都做出解釋，可以從語法，句子成分，也可以舉一些例子，Harriet22222會萬分的感謝你，你可以留下你的QQ

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D: A,C因果關系不對A：增加，加重了的意思A：matter在這里是“要緊，有關系”的意思A：不及物動詞remain，如果用left應該是be left