问题描述：
英~~~~~~~~~~语题
If you ____(receive ) a request like this ,you ____(cannot ) fail to obey it !
第二个空为什么不填will cannot ?
答案为cannot
If you ____(receive ) a request like this ,you ____(cannot ) fail to obey it !
第二个空为什么不填will cannot ?
答案为cannot
问题解答：
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