精选优质文档-倾情为你奉上一、 单项选择1. Listen! They _ in the next room.A. sing B. is singing C. are singing D. were singing2. Lucy is always busy. She _ only five hours every day.A. is sleeping B. will sleep C. would sleep D. sleeps 3. Its eight oclock. The students _ an English class.A. have B. having C. is having D. are having 4. -Is your father a doctor?-Yes, he is. He _ in Town Hospital.A. has worked
