题目内容
用所给动词的适当形式填空:You'd better ________ (look) it up in a dictionary if you ________ (not know) the word.
答案:look, don't know
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| 一般现在时
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题目内容
用所给动词的适当形式填空:You'd better ________ (look) it up in a dictionary if you ________ (not know) the word.
| 一般现在时
|