DR SALES IS THE PERSON _____. A. IN THAT I DON'T HAVE MUCH CONFIDENCE...

Câu 45: Dr Sales is the person _____. A. in that I don't have much confidence B. whom I don't have much confidence in him C. I don't have much confidence D. in whom I don't have much confidence Đọc kỹ đoạn văn sau và chọn phương án đúng (ứng với A hoặc B, C, D) cho mỗi câu từ 46 đến 50. It is very important to have healthy teeth. Good teeth help us to chew our food. They also help us to looknice. How does a tooth go bad? The decay begins in a little crack in the enamel covering of the tooth. Thishappens after germs and bits of food have collected there. Then the decay slowly spreads inside the tooth.Eventually, poison goes into the blood, and we may feel quite ill. How can we keep our teeth healthy? Firstly, we ought to visit our dentist twice a year. He can fill thesmall holes in our teeth before they destroy the teeth. He can examine our teeth to check that they aregrowing in the right way. Unfortunately, many people wait until they have toothache before they see adentist. Secondly, we should brush our teeth with a toothbrush and fluoride toothpaste at least twice a day -once after breakfast and once before we go to bed. We can also use wooden toothpicks to clean between ourteeth after a meal. Thirdly, we should eat food that is good for our teeth and our body: milk, cheese, fish,brown bread, potatoes, red rice, raw vegetables and fresh fruit. Chocolates, sweets, biscuits and cakes arebad, especially when we eat them between meals. They are harmful because they stick to our teeth andcause decay.