根据对话内容,从方框中所给的A、B、C、D、E五个选项中选出能填入空白处的最佳选项。
A: What’s your trouble, boy?
B: 84 .
A: How long have you been like this?
B: 85 .
A: Did you sleep well last night?
B: No, I coughed quite often. I felt sick all the night.
A: 86 . You’ve only caught a cold. Take this medicine three times a day.
B: 87 .
A: Nothing serious. You will be all right in two days.
B: 88 .
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