4．
看起来一些自然灾害应归咎于全球变暖。71~73)
It seems that global warming could _ __ for some natural disasters.
(1)
值得称赞的是，史密斯先生愿意无私帮助我们完成计划。(74~76)
__ __ __ ___ _ ___,Mr. Smith selflessly offered to help us with the project.
(2)
我为占用了老师那么多时间而向她道歉。(77~78)
I apologized to my teacher for_______ ______so much of her time.
(3)
除了作为一种有趣而且有益的运动外，游泳还是一项很有用的技能。(79~80)
________ _ _____ being fun and good exercise, swimming is also a very useful skill.
(4)
我看到公交车的后面有一个空位置。(81~83)
I __________ ___________ ____ an empty seat at the back of the bus.
(5)
你在这一句中漏掉了最重要的一个词。(84~85)
Youˈve the most important word in this sentence.
(6)
林肯说南方各州脱离联邦是不对的(86~88)。
Lincoln said that it was not right for the south to the Union.
(7)
很不幸，她的车在去机场的途中出毛病了。(89~90)
Unfortunately her car __________ on the way to the airport.