单项选择题A．Cross and Lawton have collided in a swindleB．Keith does not possess any evidenceC．Cross is purposely on sick leaveD．Keith is telling a lie

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单项选择题A．If he hadn’t been on sick leaveB．If he hadn’t continued making excessive ordersC．If he hadn’t been Mr. Lawton’s brother-in-lawD．If he hadn’t been spotted by Mr. Lawton