He’d better ______a doctor if he ______well.A．to see, isn’tB．see,feelsC．see,no
题型：不详难度：来源：
He’d better ______a doctor if he ______well.| A．to see, isn’t | B．see,feels | C．see,not feel | D．see,doesn’t feel |
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答案
| D |
解析
试题分析：had better 是 最好的意思,这两个词组合在一起相当于情态动词，也就是后面直接加动词原形，否定式在better后加not，再加动词原形。在条件句中表示将来动作,用一般现在时态.副词用能用作表语,故选D.
点评：had better的用法比较固定.当主句描述的是将来的动作时,条件从句用一般现在时表示将来的动作. |
举一反三
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