单项选择题
Running your own business usually（）working long hours.
A.includes B.involves C.contains D.comprises
单项选择题 The same factors push wages and prices up together, the one（）the other.
单项选择题 She will surly finish the job on time （）she is left to do it in her own way
单项选择题 （）difficulties we may come across, we'll help each other to overcome them.
