下列各句中加点成语的使用，全部正确的一项是①许多家长和考生也关心复旦自主招生将有何变化。对此，学校负责人说出大快人心的消息，根据相关规定，目前可以确定的是，自主招生将限定规模，未来“千分考”将不再举行。②严冬的夜晚，凛冽的北风从后窗缝里灌进来，常常把人们从睡梦中冻醒，让人不寒而栗。③美国政府的“救市”举措尽管态度非常积极，但只能算是扬汤止沸。以援救贝尔斯登为例，美联储的举措只是让资本市场暂时避免了更大的混乱，并没有从根本上解决问题。④今年中国房地产市场如履薄冰，或许“暴利”时代开始远去，房地产生存环境及发展渠道逐渐规范也更狭窄。⑤近年，学术造假盛行，影响极其恶劣。教育界委员呼吁，对造假者，要抓住一个，严打一个，以儆效尤。⑥夏日的南湖，风光旖旎，游人如织，泛舟湖上，水光潋滟，岸柳荫翳，秀色可餐。

I still remember the accident and the troubles ______ has caused to me.

How long have you been here— Only about five minutes. Henry and Simon ______ here with me.

Be careful. You might fall into the river.—Thank you. I ________ I ________ so close to it．

In his victory speech ________ before a huge crowd of his supporters, Obama declared that “change has come to America” [ ]