题目内容
We are going for a picnic tomorrow. I'll call Wendy to make sure_______.
A. why to start B. which to start C. what to start D. when to start
D 【解析】句意:我们明天要去野餐,我将会打电话给wendy来确定什么时候出发。A. why to start为什么出发;B. which to start哪一个出发;C. what to start什么出发;D. when to start何时出发。结合句意可知,答案为D。
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