题目内容
20．We can'tafford（ have enough money to pay for something） a new house．分析 我们买不起新房子．
解答 答案：afford
根据该空处前为情态动词后接动词原形，结合所给单词的英文解释的意思为"有足够的钱买某物"可联想单词afford常接在can，could，be able to之后，意为有足够的钱做某事，担负得起…的费用，故填入其动词原形即可故答案为afford
点评 本题考查用所给单词的适当形式填空，首先要根据语境及所给单词的英文解释明确句意，然后再根据相关语法对所给单词在形式上做出正确的变化．
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