Một người đứng trên tháp quan sát của ngọn hải đăng cao 50m nhìn về hướng Tây Nam, người đó quan sát hai lần một con thuyền đang hướng về ngọn hải đăng. Lần thứ nhất người đó nhìn thấy thuyền với góc hạ là 20 độ, lần thứ 2 người đó nhìn thấy thuyền với góc hạ là 30 độ. Hỏi con thuyền đã đi được bao nhiêu mét giữa hai lần quan sát. (làm tròn đến chữ số thập phân thứ hai)

51. I haven’t seen that man here before. => It’s…………………………………………………………………….. 52. The furniture was so expensive that I didn’t buy it. => The furniture was too…………………………………………………. 53. The robbers made the bank manager hand over on the money. => The bank manager…………………………………………………….. 54. Tom learned to drive when he was nineteen. => Tom has……………………………………………………………….. 55. She had never been so unhappy before. => She was unhappier……………………………………………………..

các cậu vẽ cái đầu creeper giúp please

Giúp mình nhé!! Cảm ơn nhiều!!!

The Sydney Opera House is one (1) ________ the world’s most famous modern buildings. Tourists (2) ________ all over the world visit it. And don’t miss Sydney Harbour Bridge (3) ________ the Opera House. The bridge is nearly 80 years old, and it was very expensive. You climb to the top and see fantastic views. Visit the Rocks – a very old, interesting part of the city, next to the bridge, it is full (4) ________ fantastic cafes and restaurants. There are lots of interesting shops there too. Do you like music? There are concerts in The Rocks every night. Sydney is famous (5) ________ Bondi Beach. It’s fantastic – don’t miss it! Everybody goes there to surf, swim and play volleyball. Relax or walk in the beautiful park next to the beach. 6. Choose the best alternative * 1 điểm A. in B. at C. of D. from 7. Choose the best alternative * 1 điểm A. at B. from C. on D. by 8. Choose the best alternative * 1 điểm A. near B. on C. under D. between 9. Choose the best alternative * 1 điểm A. with B. by C. of D. in 10. Choose the best alternative * 1 điểm A. by B. with C. on

giúp mình nhanh ạ Viết các phép chia sau dưới dạng phân số : 42 : 5 ; 2 : 3 ; -4 : (-15) ;

31. “Don’t forget to phone the office,”she told him. => She reminded................... 32. I’m afraid I haven’t got time to listen to you. => I wish......................... 33. The police has just released John. => John.......................................................................................................... 34. I couldn’t hear them because they were speaking too softly. => They were speaking......... 35. We spent 5 hours getting to London. => It took........ 36. I get to work in 20 minutes. => It .................. 37. It is necessary that this work be finished by Monday. => This work........ 38. It’s a pity I didn’t take my doctor’s advice. => I wish............... 39. The bread is so tale we can’t eat it. => The bread isn’t.......... 40. Who does this bag belong to? => Whose........ 41. My boyfriend is very short-tempered. => My boyfriend loses.......... 42. You can use it as long as you like, and it won’t wear out. => No matter........ ............................................................................................ 43. If the work is finished by lunchtime you can go home. => Get..................................................................................................... 44. How have you been getting on with your enquiries? => How much............ 45. I gave Ted the massage, but he already knew about it. => I needn’t......... 46. The trains couldn’t run because of the snow. => The snow……………………………………………………………… 47. I didn’t arrived in time to see him. => I wasn’t early…………………………………………………………. 48. I’m sorry I was rude to you yesterday. => I apologize…………………………………………………………….. 49. She didn’t hurry, so she missed the train. => If………………………………………………………………………. 50. Barbara is the best tennis-player in the club. => No one…………………………………………………………………

What...you...(do) next year. Điền vào chỗ trống (will-future)

(2x^2+x) (x-3) Tặng điểm nhưng làm đúng= vote.....

anh chị ơi lm giúp em vs ạ em cảm ơn