Tìm GTNN của các biểu thức sau B = l x + 2,8 l - 3,5

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III. Practice: 1. Answer about you: 1. When is your birthday? = What is your date of birth? ……………………………………………………………………...............................…….. 2. How old will you be on your next birthday? ……………………………………………………………………...............................…….. 3. Who do you live with? …………………………………………………………...............................……………….. 4. What is your address? ………………………………………………………...............................………………….. 2. Use the verbs in brackets to the correct tense. 1. What ……….... you………….. (do) next Sunday? 2. They ………….…….. (go) to the movies tonight. 3. David ………………….. (not be) here next week. 4. ……….... she …………..… (meet) her parents next year? 3. Choose the best answer: 1. Minh will be eighteen …............... his next birthday. a. in b. at c. of d. on 2. April is the ……….....….. month of the year. a. forth b. fourth c. third d. three 3. My birthday is on May 25th. a. date of birth b. day of birth c. party d. dates 4. You will have ………….. new friends soon. a. a lot of b. lots of c. many d. All are correct 5. …….....…. you be free tomorrow? a. Do b. Are c. Will d. Have 6. I will invite all of my friends ….........…. my birthday party. a. to b. into c. come d. for