第4题: [单项选择]I'm surprised that he ______ the exam. A. should fail B. would have failed C. may have failed D. should have failed 参考答案:D 答案解析:虚拟语气。should可用于表示惊奇、感叹、不满等感情色彩的句子,如指过去的动作,则要用should have done sth 。would和may通常不带感情色彩。
第12题: [填空题]Over a third of the population was estimated ___________________(没有机会享受医疗保健服务). 参考答案:to have no access to the health service 答案解析:[解析] 本题考查对不定式和have (no) access to固定搭配的掌握。空格处在句中作主语补足语,不定式变成被动语态以后,都必须加上to。have (no) access to为固定搭配,表