单项选择题A.Financial problems.B.Heavy burden of part-time jobs.C.Not having enough time for work due to partying.D.Lack of right attitude and skills in classroom work.
单项选择题A.The idea that it reached out to the end of the world .B.The idea that it would be too hot at the equator.C.The idea that it is too large.D.Both A and B.