单项选择题
A. Thank you for coming along B. I’m ready C. I was looking for a part-time job D. When will I know E. It is a great job F. That about covers it G. How long do I have to wait H. I have
A.spot B.tip C.point D.mark
A. Because doctors do not agree that flossing will help your heart, it is useless to floss. B. It is a fact that flossing can help your heart as well as your teeth. C. Even if flossing is only good for your teeth, you should still do it every day. D. There is no good reason to believe that flossing will help your heart, but it is still a good idea to do it every day.