单项选择题A.The experiment will take a long time.B.The students should count their time in the lab.C.Dr. Walters teaches biology in the afternoon.D.Biology lab is open one hour every afternoon.
单项选择题A.It looks better than the other one.B.The man needs more wall space for it.C.It should be put on another wall.D.It makes the wall a little more attractive.