Câu 44: Cho hàm số y=f(x) liên tục trên R và có đồ thị như hình vẽ sau: https://img.hoidap247.com/picture/question/20200321/tini_1584756921390.jpg Tập hợp nghiệm của phương trình f(f(x))+!=0 có bao nhiêu phần tử? A.4 . B.7 . C.6 . D.9 .

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D. WRITING I. Write full sentences using the suggested words and phrases given. (2.0 p). 1. It /be/ good idea/ eat/ different/ kind/fruit/ vegetable/ every day. _________________________________________________ 2. There/ be/ a lot /interesting/ tasty/ ways/ do/ this. _________________________________________________ 3. Fruit/ vegetable/ can be/ serve/ many different /ways. _________________________________________________ 4. They/ can/ also/ be/ add/ to/ other /ingredients. _________________________________________________ 5. Put/ sliced bananas/ strawberries/ on/ cereal. _________________________________________________ 6. Add/ chopped fruit/ yogurt. _________________________________________________ 7. Pack/ vegetable sticks /lunch box. _________________________________________________ 8. Top/ pizza/ with/ sliced mushrooms. _________________________________________________ 9. Eat/ fresh fruit/ better/you/ than/ glass/ fruitjuice. _________________________________________________ 10. A glass/ fruit juice/ have/ up to/ six/ teaspoons/ sugar. _________________________________________________ II. Combine these pairs of sentences into single ones by using the connectors given in brackets. 1. Volunteering is special to many people. They can help others. (because) _________________________________________ 2. He tried hard. He couldn’t set up a new world record. (although) _________________________________________ 3. They went for a picnic. We went grass sliding. (and) _________________________________________ 4. The TV set did not work property. I turned it off. (so) _________________________________________ 5. Volunteer work is very hard for teenagers in the city. They enjoy doing it. (but) _________________________________________ III. Rewrite the sentences so that their meanings stay the same, using the beginning given for each. 1. The Opera House has very comfortable seats. –► The seats______________________ . 2. They chose Kien for the school’s football team two years ago. –► Kien was _______________________. 3. Be careful or you’ll hurt yoursetf. –► If you are ______________________. 4. Collecting dolls from foreign countries is one of Jane’s interests. –► Jane is_____________________________. 5. They didn’t go camping yesterday because it rained heavily. –► Because of_____________________________. IV. Reorder the following words to make meaningful sentences. 1. day/ many/ if/ you/ affected/ watch/be/ hours/ a/ your/ eyes/ TV/ will. ……………………………………………………………………………………….. 2. as/ enjoyable/ is/ for/ reading/watching/ books/ not/ me/ as/ movies. ………………………………………………………………………………………… 3. patient/be/ this/ successful/ to/ want/ be/in/ more/if/ you/ job. ………………………………………………………………………………………. 4. relaxed/ when/ happy/ to/ music/ I feel/ listening/ and. ………………………………………………………………………………………… 5. unpaid/ this/ job/ experience/ even/gain/ a/ lot/ though/ of/ useful/ will/ this/ is/ you/ from/ an. ……………………………………………………………………………………………………..