III. Choose the best words or phrases to complete the sentences below

1. Television..................very popular since the 1950s.

A. is                            B. was                        C. has been                D. have been

2. - "Who sings best in your school?"       - "Minh............."

A. sings                      B. is                            C. has                         D. does

3. Please ask them .......................in this area.

A. don't smoke          B. not smoking         C. not to smoke         D. to not smoke

4. Let's go to the museum, ................?

            A. will you                B. shall we                 C. do we                     D. don't you

5. He though much of his childhood.............. he lived with his family in the country.

            A. that                        B. where                    C. when                      D. which

III. Read the text and choose the most suitable heading (A-G) for each paragraph (1-5). There are two extra headings that you do not need. (5pts) KEEPING OUR TEETH HEALTHY A. You can fill small holes in your teeth. B. Something you eat is good for your teeth, but something isn’t. C. Strong teeth are necessary for our health and appearance. D. Chocolate, sweets and biscuits are sometimes used after meals. E. Toothbrush and toothpaste help clean your teeth. F. Tooth decay makes our teeth bad. G. You should go to the dentist at least two times a year. 71. It is very important to have healthy teeth. Good teeth help us to chew our food. They also help us to look nice. 72. How does a tooth go bad? The decay begins in a little crack in the enamel covering of the toot. This happens after germs and bits of food have collected there. Then the decay slowly spreads inside to tooth. Eventually, poison goes into the blood, and we may feel quite ill. 73. How can we keep out teeth healthy? First, we ought to visit our dentist twice a year. He can fill the small holes in our teeth before they destroy the teeth. He can examine our teeth to check that they are growing in the right way. Unfortunately, many people wait until they have toothache before they see a dentist. 74. 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 our teeth after a meal. 75. 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. Chocolate, sweets, biscuits and cakes are bad, especially when we eat them between meals. They are harmful because they stick to our teeth and cause decay. Your answers: 71____________ 72____________ 73___________ 74___________ 75___________

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