题目

When I asked her for help，she agreed to help me________without any hesitation (犹豫)． A．immediate                                           B．immediately  C．for once                                             D．on once 答案：B　句意为：当我向她求助时，她立即毫不犹豫的答应帮助我。immediately为副词，意为“立即，马上”，相当于at once。

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