Hai người cùng làm chung một công việc trong giờ thì xong. Nếu mỗi người làm một mình thì thời gian để người thứ nhất hoàn thành công việc ít hơn người thứ hai là 2 giờ. Hỏi nếu làm một mình thì mỗi người phải làm trong bao nhiêu giờ để xong công việc?

Vẽ giúp một cái quần jean cho nữ đi ạk

25.I _____________playing board games interesting because I can play them with my friends. A. think ​ B. find​ C. say D. tell 26. Don’t read in bed , ________________you will harm your eyes. A. but​ B. or​ C. and​ D. so 27.Nam wants to lose weight, __________ he began jogging last Sunday. A. so ​ B. but​ C. and​ D. or 28.My father enjoys ____________________ basketball in the morning A. playing​B. to play​C. plays​ D. played 29.Mozart was one of the most famous ________________ of classical music. A. actors​ B. composers​ C. artists​ D. makers 30.- What are you doing with all that paper and glue, Giang? I’m trying to ___________________ a collage. A. do​B. make​C. draw​ D. do 31. -___________________ do you find making pottery? – I finding making pottery interesting. ​A. What​B. How​C. Why​D. When ​ 32. Jenny ___________________two eggshells and he will continue the third one. ​A. carves​B. has carved​C. carved​D. will carved 33. My father hates___________________ coffee. He prefers tea. ​A. to drink​B. drink​C. drinks​​D. drinking 34. I have a temperature, ___________________ A. but I go to bed early​B. so I feel tired​ C. or I am putting on weight ​D. and I eat more vegetables 35. Would you like________ tea? ​A. some​B. any​C. a​D. an 36. Beethoven___________________ a lot of songs. ​A. composes​B. composed​C. has composed​D. compose 37. Liz: I am so nervous that I am putting on weight. Tony: ___________________ A. Wash your hand more​B. Eat less junk food​ C. Sleep more ​ D. Sunbathe less 38. Jack spends almost his time staring at his smart phone, ___________is very short-sighted. ​A. and​ B. or​C. but​D. so 39. My father loved___________________ horse-riding when he was young. ​A. doing​B. going​C. playing​D. taking​ 40. She feels itchy and her nose is running. She says she has __________________ ​A. headache​B. toothache​C. allergy​D. flu 41. Jenifer says that she _______________collecting dolls, but she____________ in the future. ​A. will like / won’t continue​C. likes / continues ​B. likes / won’t continue​D. will like / continues 42. It is interesting _____________ tree leaves from different countries. A. collecting ​B. to collect ​C. collect ​D. collects 43. My dad enjoys ________ his bike to work. A. to ride ​B. ride ​C. rides ​ D. riding 44. I love cooking, _________ my sister doesn’t. A. because ​B. so ​C. but ​D. and 45. Laughing is good _______ your health. A. for B. to ​ C. with ​ D. of

Bản chất quá trình truyền âm là quá trình truyền dao động qua các hạt vật chất trong môi trường, âm truyền trong chất rắn nhanh nhất vì A. các hạt sắp xếp có trật tự nhất. B. có nhiều hạt vật chất nhất. C. khoảng cách giữa các hạt là nhỏ nhất. D. các hạt sắp xếp đều nhau nhất.

bài 1 :tính nhẩm a,12+34+66+98 b,100.5.2

25.I _____________playing board games interesting because I can play them with my friends. A. think ​ B. find​ C. say D. tell 26. Don’t read in bed , ________________you will harm your eyes. A. but​ B. or​ C. and​ D. so 27.Nam wants to lose weight, __________ he began jogging last Sunday. A. so ​ B. but​ C. and​ D. or 28.My father enjoys ____________________ basketball in the morning A. playing​B. to play​C. plays​ D. played 29.Mozart was one of the most famous ________________ of classical music. A. actors​ B. composers​ C. artists​ D. makers 30.- What are you doing with all that paper and glue, Giang? I’m trying to ___________________ a collage. A. do​B. make​C. draw​ D. do 31. -___________________ do you find making pottery? – I finding making pottery interesting. ​A. What​B. How​C. Why​D. When ​ 32. Jenny ___________________two eggshells and he will continue the third one. ​A. carves​B. has carved​C. carved​D. will carved 33. My father hates___________________ coffee. He prefers tea. ​A. to drink​B. drink​C. drinks​​D. drinking 34. I have a temperature, ___________________ A. but I go to bed early​B. so I feel tired​ C. or I am putting on weight ​D. and I eat more vegetables 35. Would you like________ tea? ​A. some​B. any​C. a​D. an 36. Beethoven___________________ a lot of songs. ​A. composes​B. composed​C. has composed​D. compose 37. Liz: I am so nervous that I am putting on weight. Tony: ___________________ A. Wash your hand more​B. Eat less junk food​ C. Sleep more ​ D. Sunbathe less 38. Jack spends almost his time staring at his smart phone, ___________is very short-sighted. ​A. and​ B. or​C. but​D. so 39. My father loved___________________ horse-riding when he was young. ​A. doing​B. going​C. playing​D. taking​ 40. She feels itchy and her nose is running. She says she has __________________ ​A. headache​B. toothache​C. allergy​D. flu 41. Jenifer says that she _______________collecting dolls, but she____________ in the future. ​A. will like / won’t continue​C. likes / continues ​B. likes / won’t continue​D. will like / continues 42. It is interesting _____________ tree leaves from different countries. A. collecting ​B. to collect ​C. collect ​D. collects 43. My dad enjoys ________ his bike to work. A. to ride ​B. ride ​C. rides ​ D. riding 44. I love cooking, _________ my sister doesn’t. A. because ​B. so ​C. but ​D. and 45. Laughing is good _______ your health. A. for B. to ​ C. with ​ D. of

Huhuhuhuhuhuhuhu huhuhuhuhuhuhuhu

hộ vs nhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Vẽ đậu mầm cầm hình trái tim Cute zô Chính: Viết một số lời chúc bạn thân Tính cách: Cọc cằn, thô lỗ nhưng vẫn quan tâm bạn bè và viết một lời chúc tặng cho bạn bè thường nữa nha^^ Dựa vào tính cách để viết lời chúc nha Đến mai mik cần Ko gấp lắm Lời chúc hay+tranh đẹp=hay nhất

25.I _____________playing board games interesting because I can play them with my friends. A. think ​ B. find​ C. say D. tell 26. Don’t read in bed , ________________you will harm your eyes. A. but​ B. or​ C. and​ D. so 27.Nam wants to lose weight, __________ he began jogging last Sunday. A. so ​ B. but​ C. and​ D. or 28.My father enjoys ____________________ basketball in the morning A. playing​B. to play​C. plays​ D. played 29.Mozart was one of the most famous ________________ of classical music. A. actors​ B. composers​ C. artists​ D. makers 30.- What are you doing with all that paper and glue, Giang? I’m trying to ___________________ a collage. A. do​B. make​C. draw​ D. do 31. -___________________ do you find making pottery? – I finding making pottery interesting. ​A. What​B. How​C. Why​D. When ​ 32. Jenny ___________________two eggshells and he will continue the third one. ​A. carves​B. has carved​C. carved​D. will carved 33. My father hates___________________ coffee. He prefers tea. ​A. to drink​B. drink​C. drinks​​D. drinking 34. I have a temperature, ___________________ A. but I go to bed early​B. so I feel tired​ C. or I am putting on weight ​D. and I eat more vegetables 35. Would you like________ tea? ​A. some​B. any​C. a​D. an