单项选择题A.They feel tired of their work.B.They are too busy to take care of their family.C.They can make a balance between their work and life.D.They just want to stay at home.
单项选择题A.The longer our nap is, the more energy we will get.B.A 20-minute nap will help to restore our energy.C.A short-time nap does less help to our body.D.We usually don t want to wake up when taking a nap.