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bome121212
2 năm trước
Nung m gam hỗn hợp Fe và S thu được 12 gam hỗn hợp X gồm Fe, FeS, S. Cho hỗn hợp X tác dụng với lượng dư HNO3 đặc nóng thu được 33,6 lít khí NO2 (đktc). Khối lượng mỗi chất trong hỗn hợp là: A. 2,8 gam Fe và 9,2 gam S C. 5,6 gam Fe và 6,4 gam S B. 8,4 gam Fe và 3,6 gam S D. 11,2 gam Fe và 0,8 gam S
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Làm giúp mình với ạ I. Chia động từ 1. I ………. (like) milk, meat and cola. 2. He ………. (play) badminton in the morning. 3. We………. (go) to bed at midnight. 4. My mom……….(do) housework on weekends. 5. The train……….(arrive) at 8.00 a.m. 6. My elder sisters……….(finish) works at 7 p.m. 7. Ann’s friends ………. (live) in a big house. 8. The dog………. (like) her, not me. II. Chọn dạng đúng của từ. Gạch chân từ em chọn 1. My dad is a doctor. He always wear/wears a white blouse. 2. My mom never drink/drinks wine. 3. Elizabeth go/goes shopping twice a month. 4. I have/has a pen. 5. Mary and John cut/cuts people’s hair. 6. Mark usually watch/watches TV before having dinner. 7. I and my brother go/goes to school on foot everyday. III. Dùng "do not" hoặc "does not" để hoàn thành những câu sau 1. I ............. prefer coffee. 2. She ............ ride a bike to her office. 3.Their friends .............. live in a small house. 4. They ............ do the homework on weekends. 5. Mike ............. play soccer in the afternoons. 6. The bus ............. arrive at 8.30 a.m. 7. We ................. go to bed at midnight. 8. My brother .............. finish work at 8 p.m. IV. Hoàn thành cách câu sau 1. ....... Jack like eating hamburgers? => Yes, ........ 2. ....... you get up early on Sundays? => No, ........ 3. ....... the students always work hard for the exam? => No, ........ 4. ....... the train leave at noon every day? => Yes, ........ 5. ....... he often play the guitar? => No, ........ 6. ....... they take a taxi to school every morning? => Yes, ........ 7. ....... Anna and Daisy visit their old teachers on winter holidays? => No, ........ 8. ....... water boil at 100 degrees Celsius? => Yes, ........ V. Điền dạng đúng của từ trong ngoặc 1. Emma (not study) ………. on weekends. 2. He (have) ………. a new shirt today. 3. I usually (have) ……….dinner at 6.40 p.m. 4. James (not/ study)……….very hard, so he never gets high scores. 5. My father often (teach)……….me Math on Saturday evenings. 6. I like English and she (like)……….Korean. 7. My sister (go)……….out every day. 8. We (not/ have)……….breakfast every morning. VI. Viết lại câu và điền đúng dạng từ trong ngoặc đơn: 1. My friends (sleep) on the floor. (rarely) =>____________ 2. She (stay) up late? (usually) => ____________ 3. I (do) the housework with my young sister. (often) => ____________ 4. Peter and Harry (come) to class in time. (never) => ____________ 5. Why Thomas (get) bad marks? (always) => ____________ 6. You (go) shopping? (often) => ____________ 7. She (cry). (seldom) => ____________ 8. My father (play) soccer. (never) => ____________ VII. Viết lại câu hoàn chỉnh Example: They / wear skirts to work? =>Do they wear skirts to work? 1. John/ want some drinks? =>________ 2. we / not / believe our teachers =>________ 3. Peter / understand the question? =>________ 4. We/ not / work late on Saturdays =>________ 5. They/ not / play games at the weekends =>________ 6. He/ have three sons=>________ 7. When / David / go to his Chinese class? =>________ 8. Why / you / have to clean up? =>_______ VIII. Đọc và hoàn thành đoạn hội thoại dưới đây bằng cách chia động từ: My cousin, Ron (have)………..a dog. It (be)………..an intelligent and beautiful pet with a short tail and big brown eyes. Its name (be)………..Rex and it (like)………..eating meat. Although Rex (bark)………..when strange guests visit, it (never/ bite)………..anyone; To be honest, Rex (be)………..very friendly. It (not/ like)………..eating fruits, such as apple, orange, banana, or grape, but it (often/ play)………..with them. If the weather (become)………..bad, Rex (just/ sleep)………..in his cage all day. Ron (play)………..with his dog every day after school. Because there (be)………..many people on the road, Ron (not/ let)………..the dog run into the road. Ron (often/ take)………..Rex to a large field in the park to enjoy the peace there. Rex (sometimes/ be)………..naughty, but Ron loves it very much.

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