单项选择题
A．offer his help B．stop smiling at you C．help you find the way D．reply that he is pleased to meet you
A．One can know his friends better from their color preference. B．Workers can work better in a room with bright colors. C．The person who prefers dark colors can not be successful. D．We can change our mood by changing our clothes.
A. a one B. the one C. the ones D. these ones