题目内容
16.You should look up the word in the dictionary when you areunsureof its spelling.(sure)分析 当你不确定这个词的拼写时,你应该查一下字典.
解答 答案:unsure.
根据You should look up the word in the dictionary when you are--of its spelling.(sure),可知当你不确定这个词的拼写时,你应该查一下字典.这里根据You should look up the word in the dictionary,可确定对单词的书写应该是不确定.这里放在be动词后面应该用形容词.unsure,形容词,不确定的.故填unsure.
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化.
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