một kho gạo sau khi xuất đi 20% số gạo trong kho thì phải nhập vào một lượng gạo bằng bao nhiêu % số gạo hiện có trong kho để lại được số gạo như lúc ban đầu?

Các câu hỏi liên quan

I. Change these sentences to the passive voice : (Chuyển các câu sau sang hình thức bị động) 1. My students have met their friend at the station. ……………………………………………........................................................... 2. They didn’t allow Tom to take these books home. ………………………………………………...................................................... 3. The teacher won’t correct exercises tomorrow. ………………………………………………….................................................. 4. How many trees did they cut down ? …………………………………………………………….................................. 5. This well-known library attracts many people. …………………………………………………................................................... II. Change these sentences into reported speech: (Chuyển các câu sau dạng tường thuật) 1. Daisy said : “ Please lend me your history book, Joana. ” ……………………………………………………………………………………………… 2. The police said : “ Don’t touch anything in this room, everybody. ” ……………………………………………………………………………………………… 3. Mrs. Green said to her friend : “ Can you help my son with his literature ? ” ……………………………………………………………………………………………… 4. “ You shouldn’t translate each sentence into Vietnamese ”, his brother said. ……………………………………………………………………………………………… 5. “You should learn words and do exercises in order to get good grades” , my teacher said. ……………………………………………………………………………………………… III. Write sentences beginning with “I wish”: (Viết lại các câu sau bắt đầu bằng “I wish”) 1. I haven’t got much money.  I wish ……………………………………………………………. 2. She’d like to be far away from house.  I wish ………………………………………………… 3. Francisco lives a long way away.  I wish …………………………………………………… 4. I have to practice the piano every day.  I wish ……………………………………………… 5. I’m very bad at math.  I wish ………………………………………………………………….. IV. Use the correct form of the verbs in conditionals type 1: (Chia động từ ờ dạng câu điều kiện loại 1) 1. If the weather …………. good next weekend, we …………… away somewhere. (stay / go) 2. Come on ! If we ……………, we ………………… the bus. (hurry / catch) 3. If the sea level ………………, there will be many floods in many parts of the world. (rise) 4. They will be late for the meeting if they ………………… now. (not leave) 5. If you aren’t careful, you …………………. the plates. (drop)