选择题：The past 22 years have really been amazing， and ev

题目内容：

The past 22 years have really been amazing， and every prediction we’ve made about improvements have al come __true__
(A) 对 (B) 错

参考答案：

当代理收到一个GET请求时，如果有一个值不可或不能提供，则返回（）(A)该实例的下个值(B)该实例

当代理收到一个GET请求时，如果有一个值不可或不能提供，则返回（）(A)该实例的下个值(B)该实例的上个值(C)空值(D)错误

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I don.t play basketball any more, _________ when I was a child.　(A)but I used

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All the task ______ ahead of time, we planned to go on holiday for a week.(A)h