shoud和would的选择题Afterstudyinginamedicalcollegeforfiveyears.janesetoutjobasadoctorinthecountryside,forshethoughtiswasessentialthatthere---begoodmedicalcareinthatarea.Could\should\must为什么选shoud?与could

题目详情

shoud和would的选择题
After studying in a medical college for five years.jane set out job as a doctor in the countryside,for she thought is was essential that there---be good medical care in that area.
Could\should\must
为什么选shoud?与could 有什么区别?

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答案和解析

这是虚拟语气固定用法,主语从句it was essential that谓语用虚拟语气,(should)+动词原形,表示主观看法

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