在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中的虚拟语气
　　在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中，我们经常用“should+动词原形(或完成形式)”，表示惊奇，怀疑，不满等。
　　I never thought that he should be such a brave young soldier.
　　我们从来没想到他是个如此勇敢的小战士。
　　练习：
　　1) that the time will soon be ripe for intervention in Iran，they would be faced by a large army?
　　[A]It is believed
　　[B]Should they believe
　　[C]They would believe
　　[D]If they would believe
　　2) I think it advisable that he for Tokyo soon.
　　[A]will leave
　　[B]may leave
　　[C]leave
　　[D]leaves