—Ithasbeennation-widelyrequiredthateverystudent______havedailyexercisef

—It has been nation-widely required that every student ______ have daily exercise for one hour.—Yeah.It is high time that we ______ special attention to physical exercise.A.must；should pay B.should；paidC.will；shall pay D.need；pay

B解析试题分析：句意:--每个学生一天必须有一个小时的锻炼身体的时间这是国家普遍的要求。--是的，到了我们应该注意锻炼身体的时候了。Required后的主语从句用虚拟语气，从句谓语动词用should+do;这里是固定句式it is high time+that should+do 或did,故选B。考点：考查虚拟语气的用法。点评：本题难度适中。虚拟语气是近几年高考的热点，虚拟语气的情况复杂，形式多样，需要考生牢记它们的不同的用法，再根据不同的语境分析句子应该用哪种情况的虚拟。即学即练：—You _________ have set aside more time to play with our kids.—I wish I _________, but you know how busy I was.A. should; would B. could; didC. might; should D. should; had解析：D。考查虚拟语气在wish从句中的用法。由句中“should have set aside”及“how busy I was”可知，该句表示与过去事实相反。故选D。

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