题目内容
8．杰瑞的爸妈没别的办法只有拿走他的手提电脑，因为他太沉迷网络游戏了．Jerry's parentshad no choice but to take away his laptop because he was too crazy about the computer game．
分析 had no choice but to．
解答 答案：had no choice but to．这里说的是过去的事情用一般过去时，表示除了…没有别的办法，用have no choice but to do，have的过去式是had，故答案是had no choice but to．
点评 这里的but表示除了…当but前有do时，but后面没有to
这里的do指的是所有的实义动词，不是助动词do．
but后面只有接动词原形（do）和动词不定式（to do）两种形式，没有别的时态．因为不定式肯定是to加动词原形了，but do的用法其实是省略了to的不定式，所以也必须是原形．
例如：You have no choice but to wait．but 前没有do所以but后要用do
I have nothing to do but wait．but前有do所有后面不要用do
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