No one________ be more generous；he has a heart of gold.         (2013·天津，9)
A．couldB．must
C．dareD．need
A
解析　考查情態(tài)動(dòng)詞。句意為：沒人比他更慷慨；他有一顆金子般的心�！癗o one could be more generous”是否定詞和比較級(jí)連用，表達(dá)最高級(jí)含義，A項(xiàng)could可以在否定句中表示推測，為正確答案。B項(xiàng)表推測，只用在肯定句中；dare和need不符合句意。
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