题目内容
17.We go to the school librarytwice (two) a week.分析 我们每周去学校图书馆两次.
解答 答案:twice.
根据We go to the school library--(two) a week.可知我们每周去学校图书馆两次.这里twice a week表示一周两次,在这里表示频率,twice,两次.故填twice.
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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