We are at your service．Don't hesitateto turn to us if you have any further problems．题目和参考答案——青夏教育精英家教网—

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3．We are at your service．Don't hesitateto turn （turn） to us if you have any further problems．

分析我们随时为你效劳．如果你有任何进一步的问题，不要犹豫向我们求助．

解答答案是to turn．本题考查动词不定式做宾语；题干中hesitate（犹豫）后面往往接动词不定式做宾语，即hesitate to do 犹豫做…；故答案是to turn．

点评本题是要求用所给动词的适当形式填空，解题时首先考虑句中需要的是谓语动词还是非谓语动词；其次，如果是谓语动词关注时态、语态和数的变化；如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式．

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