题目内容
14．Is hetying the horse to the tree？（tie）分析 他把马拴到树上了吗？
解答 答案：tying 考查单词填空．根据题干：句中有系动词is，tie是动词，这里要用现在分词tying．
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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