题目内容


I was so young.  You__________ better than to rely on me
A．should have knownB．should knowC．must knowD．must have known
A
考察虚拟语气。句意：我是如此年轻。你应该知道最好不要依赖我。“should+have+done”意思是“本来应该做某事，而实际没做。故选A。
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