How many states _______ the United StatesFifty.

don’t trust that man; he is the guy who ____. [ ]

依次填入下列各句横线处的成语，最恰当的一组是（3分） （ ）①我真不解自家的弟兄何必这样___________，岂不是横竖都一样②就是族中亲派，不论亲疏，但与他财利交往，__________，一些情面也没有的。③凌雪春从夏侯晶婴手中借过纸笔，端坐在灯下，驰笔若飞，千言长书，__________。④勿因事小而不屑为，当知“万丈高楼从地起”，天下决无__________之事，亦未有一学即能之业，无不从一点一滴的知识经验积聚而成，若事小尚不能为，安见其能为大事

few years, the coal workers theirlungs X-rayed to ensure their health.

ill be a year of action, and that action shouldbegin by extending unemployment insurance for Americans who were _______ in theeconomic slowdown