.  Your mouth will be opened and your teeth will be shown when you laugh. However, the h____(1)_____ those teeth are, the happier you look. Strong, healthy teeth can help you eat the right food to help you g_____(2)______. They also help you speak clearly. But do you know how to take care of your teeth? These should be f_______(3)______.
Brush your teeth twice a day after breakfast and before bedtime. If you can, brush after lunch or after eating sweet cakes. T____(4)_____ your time while brushing. Spend at least 3 minutes each time you brush. Brush all of your teeth, not just the f____(5)_____ ones. Spend some time on the teeth along the s_____(6)______ and in the back.  
Be sure the t____(7)_____ you use is soft and should be changed every three months or even less.
Learn how to floss(用牙线清理) your teeth, which is a very important way to keep them healthy. It feels s when you do it at first, but soon you’ll get used to doing it. The floss cleans up food that’s h____(8)_____ between your teeth.
Brushing and flossing keep your teeth healthy. You also need to c______(9)______ about what you eat and drink. Eat lots of fruits and vegetables and drink water i____(10)____ of drinks.

He was struggling(费劲) to tie his shoes. I was struggling with whether I should help him.
I did, and he was grateful.
“Thank you,” he said.
“I’m glad I could help. I just thought it would be easier for me to reach,” I said.
He was a disabled man, and forced to look down most of the time. His arms and legs were twisted(扭曲的) terribly, and he couldn’t do what the rest of us would consider easy tasks. He always managed to look up to see how you reacted(反应) to his words, however. He had a big smile, making me feel comfortable.
I was still on my knees by his wheelchair.
“ Nice shoes,” he said.
“Thanks. No one ever complimented (赞美) me on them before,” I said.
“No one has the same view of the world as I do,” he replied.
“Tell me about the world as you see it,” I said smiling.
“Most people can see if someone is comfortable with them or not in their eyes. I see it in their feet.” he said. “If people keep moving their feet, I just let them go, because I know they’re impatient with me. I don’t want to make people uncomfortable.
“What about me? I asked.
“I could see your compassion. And then you came down to my level. I was the one who was nervous.” he said. “I don’t normally have someone look me in the eye.”
“They don’t know what they’re missing,” I told him.
“My old face is nothing to brag(自夸) about.” he said.
“But that smile is so big.”
Yes, and it’s not only a big smile but an attitude.
【小题1】The disabled man knew people were impatient mostly by their _________.