mary can’t help ________when she saw her parents

选择题

　　Mary can’t help ________when she saw her parents.

　　A. crying

　　B. to cry

　　C. cried

　　D. cries

　　正确答案： A. crying

　　答案解析： 这是一个固定搭配的用法，“can’t help doing something”表示无法控制做某事，后接动名词形式。因此正确答案是A，即"crying"。

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填空题

　　Complete the sentence with the appropriate word:

　　Mary was so surprised ________ she saw her parents.

　　正确答案： when

　　答案解析： "Surprised when" is the correct phrase to use here, indicating the timing of Marys surprise upon seeing her parents.

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判断题

　　True or False: Mary was indifferent when she saw her parents.

　　正确答案： False

　　答案解析： 根据题目中的描述，Mary看到她的父母时无法控制地哭了，表明她并不是无动于衷，因此判断为False。

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论述题

　　Discuss why Mary couldn’t control her emotions when she saw her parents.

　　答案解析： Mary couldn’t help crying when she saw her parents because she was overwhelmed with emotions. Seeing her parents unexpectedly might have brought up feelings of joy, nostalgia, or relief, depending on the context. Human emotions, especially when related to loved ones, can be intense and uncontrollable, leading to tears as a natural response. Marys reaction likely stemmed from a deep emotional connection and the suddenness of the encounter, prompting an immediate emotional release in the form of tears.

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　　这篇文章通过多种题型展示了对题目的理解和答案解析，包括选择题、填空题、判断题和论述题，帮助读者全面理解题目背后的语法和情境含义。