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Mr. Black has a shop. He works in the shop by himself all day, so he feels very _______ and tired every day.

It was _______ Sunday morning. Mr. Black didn't feel well, so he went to see his doctor. The doctor asked him _______ and looked him over carefully. After that, he left the room, and _______ back with three different bottles of pills.

Looking at Mr. Black, he said, “ _______ the green pill with a big glass of water when you wake up. Take the blue pill with a big glass of water after you have lunch. And before _______ to bed, take the red pill with another big glass of water.” Mr. Black was very surprised, he took so _______ medicine and asked the doctor, “Mmm. … doctor, _______ is wrong with me?” The doctor answered, “Mr. Black, you are not drinking enough water.”