单项选择题A.He wonders if he’ll have enough time to do the job.B.He fears that the job may be too boring.C.He thinks Prof. Johnson has someone else in mind.D.He is afraid he won’t know enough to do the job well.
单项选择题A.Brush your teeth right before you go to bed in the evening.B.Have as few of your teeth pulled out as possible.C.Have your teeth X-rayed at regular intervals.D.Clean your teeth shortly after eating.