题目内容
1.My brother took the pills for only three days before he finally recovered,so the medicineproved (prove) very effective.分析 我哥哥只吃了三天的药丸就康复了.所以这药证明是非常起作用的.
解答 答案是proved.考查系动词prove的用法.句意是"我哥哥只吃了三天的药丸就康复了.所以这药证明是非常起作用的."句中prove是系动词,后面接形容词effective作表语,prove表示"证明是",不用于被动语态.由took可知句子是一般过去时态,所以prove用过去式proved.故答案是proved.
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动.
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