题目内容
用题后所给词的适当形式完成句子，使意思完整：
I find it very hard________ around the big city because I don't know the way. (travel)
答案：to travel
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用题后所给词的适当形式完成句子，使意思完整：
I find it very hard________ around the big city because I don't know the way. (travel)
阅读快车系列答案