情态动词－had better表示最好（在线收听） |
| had better 相当于一个助动词，它只有一种形式，它后面要跟动词原形。 had better do sth had better not do sth It is pretty cold. You'd better put on my coat. She'd better not play with the dog. had better have done sth表示与事实相反的结果，意为本来最好。 You had better have come earlier. |
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