Treo một vật nặng có thể tích 0,5dm3 vào lực kế rồi nhúng ngập vật trong nước. Khi đó, lực kế chỉ giá trị 5N. Biết trọng lượng riêng của nước là 10000N/m3. Trọng lượng của vật nặng là

I- Choose the best answer : 1. She talked to her friends ………. Her vacation in Dalat. (in - about- on - with) 2. I ……………… very happy on my last vacation. (will be - am - was -were) 3. It was a green skirt with white flowers ………………… it. (in - on - at - to) 4. We like …………………… together. (talk - to talk - talking - talked) 5. He …………………… here tomorrow. (don’t - didn’t - won’t - wasn’t) 6. … you go and see her? Because was sick. (When – Where- What time - Why) 7. …………………… a nice dress! (How - Who - What - Which) 8. We enjoy ………… around the world.( traveled - traveling - to travel - travel) 9. What will you …………… during your vacation? (did - do - does - doing) 10. She needed …………………… these post cards to her friends. ( to sent - sending - sent - send) II. Give the past form of these verbs: 1.arrive 2.remember 3.return 4.rent 5.receive 6.move 7.watch 8.learn 9.decide 10.stop 11.have 12.be 13.go 14.buy 15.take 16.see 17.wear 18.eat 19.think 20.put 21.give 22.teach 23.make 24.do III.Arrange the words into the correct order to make the sentence 1.tell/ to/ nearest/ you/ the way/ bus stop / could / me / the ? 2.be/ won’t/ to/ keep/ it/ difficult/touch/ in 3.to/ Ha Noi/by / the / returned/ Robinsons/bus. 4.in/ souvenir / what/ buy/ shop/did/the/ they? 5.decided/ learn / sew/ she / how/ to/ to/ . 6.my/ me/ neighbor/ made/ bought/the/ the/ material/dress/ for /and. IV. Change into the negative and interrogative form 1.She enjoyed her last summer holiday. 2.Hoa made a cushion for her armchair. 3.They painted the house yellow. 4.I was late for school. 5.Mr Lee took the children to the museum last Sunday 6.She talked to her friends about her vacation in Dalat. 7.They were at the party last night. 8.Mr Quang taught Maths in high school for many years. V. Rewrite the sentences 1.Let’s go to the cafeteria. What about___________________? 2.They returned to America two weeks ago 3.She went to the doctor because she was sick 4.She likes History most Her_________________________ 5.Do you want to come? Would_________________________ 6.We will have a vacation that lasts for three months. We will have a___________________ 7. What about having dinner in the restaurant? Why don’t______________________? 8.He spent two hours doing his homework. He took__________________________

Qua 3 văn bản: Sông nước Cà Mau, Vượt thác, Cô Tô, em hãy nêu lên vẻ đẹp thiên nhiên đặc trưng của ba vùng miền Bắc, Trung, Nam trên đất nước ta.

giúp mình làm phần trắc nghiệm lý 6 với

Cho tam giác abc vuông tại a, ab=15cm và ac=20, đường cao ah. Tia phân giác của góc hab cắt hb tại d. Tia pg của góc hac cắt ac tại e. a)tính độ dài ah b)tính độ dài hd,he

III .Chọn và khoanh tròn đáp án đúng A,B, hoặc C(3 điểm) 1. John likes ……………… tennis. A. playing B. play C. played 2. What will you ……………. during your vacation? A. did B. does C. do 3. Would you like to go . . . . . . .. the library? A. to B. on C. at 4. There’s nothing in the refrigerator. Let’s . . . . . . . . to the market. A. go B. went C. goes 5. English books are on the shelves . . . . . . . the right. A. on B. at C. in 6. We enjoy . . . . . . . . . in summer. A. swim B. swam C. swimming IV.Chia động từ trong ngoặc ở dạng đúng(2 điểm) 1. Lan (not watch) ………………TV last night. 2.You must (be)………………… careful. 3.We (visit)…………………… our grandparents tomorrow. 4.Hue and Mai (go) ………………………to Ha noi yesterday. V.Chọn từ không cùng nhóm với từ còn lại(1 điểm) 1.a. stomachache b.coughing c.toothache d.flu 2.a.skip b. soccer c.tennis d. volleyball 3.a.bought b.ate c. drank d.wanted 4.a.pineapple b. durian c. papaya d.potato VI.Đọc kỹ đoạn văn sau rồi trả lời các câu hỏi ở bên dưới(2 điểm) Yesterday was Hoa’s thirteenth birthday. She had a small party with her friends. They ate a lot of food, fruits and cakes. In the evening , Hoa had a stomachache. Her aunt was worried. She called a doctor. The doctor arrived and gave Hoa some medicine. She took the medicine and went to bed . Today, Hoa feels better. 1.When was Hoa’s thirteenth birthday? =>………………………………………………. 2.Why did Hoa have a stomachache? =>………………………………………………. 3.Was her aunt worried? =>………………………………………………. 4.Does Hoa feel better today? =>………………………………………………. VII.Viết lại những câu sau sao cho nghĩa không đổi(2 điểm) 1. Let’s go to the movies. => What about……………………………………….? 2. He is a safe cyclist. =>He cycles………………………………………….. 3. How much does the green dress cost ? => How much ………………………………………….? 4. Lan is taller than her sister => Lan’s sister is ……………………………………………?

hãy miêu tả hoa quỳnh anh trong đó có dùng phép nhân hóa nhanh nha mọi người không trả lời tùm lum

anh quangcuong347 ơi làm giúp em câu b bài này vs nhé

luận điểm, luận cứ, lập luận là gì? chỉ cho mik vs:<

Châu Á có diện tích đứng thứ mấy trong các châu lục ?