填空题
A.mule B.truth C.duke D.puke
A. Because they do not hurt human eyes. B. Because they are cheaper than regular ones. C. Because they can help people at night. D. Because they can reduce the number of suicides.
A. is easy to get along with B. is never pleased with her neighbors C. is unhappy with the life they are living D. is good at observing and understanding people