依次填入下列各句横线处的词语，最恰当的一项是 (　 　)

①钱，是要挣的，但是应该用正当的____________去挣，绝不能突破社会道德底线甚至从事违法犯罪活动。

②任何一种药物都只能在一定的时间内起作用，常用抗生素的____________大多为6小时。

③我那位亲戚在上海算是有门路的，可当我写信求他在上海给我谋份差事时，他却在回信中叫苦不迭，百般____________。

从下面的词语中各找出两对近义词和反义词。

        守信   美丽   特殊    糊涂

        漂亮   失信   明白    特别

近义词：____        ____

        ____        ____

反义词：____        ____

        ____         ____

阅读理解，选择正确的答案。

    April Fools'Day is a day to play jokes on others．No one knows how it began，but people think it first began in France．

    Each country celebrates April Fools'Day differently．In France，people call the April fools "April Fish"．They tape a paper fish to their friends' backs to fool them．When he or she finds this，they shout” April Fish!”

    In the UK，people play jokes only in the morning．You are a“noodle”if someone fools you．

    In the US，people play small jokes on their friends on the first of April．They may point down to your shoe and say，“Your shoelace iS untied．”If you believe them and look down，you are an April fool then．