giúp em với ạ em cho ctlhn và 5 sao ạ

Ex5.Give the correct forms of the verbs in brackets using simple past or present perfect.(Cho dạng đúng của động từ trong ngoặc sử dụng thì quá khứ đơn hoặc thì hiện tại hoàn thành.) 30. Last year I have donated my old clothes to children in Lao Cai. 31. The floor looks dirty. I'm sure you (not clean up) ……………. 32. (you/ enjoy) ………………the party last night? 33. My bicycle isn't here. I think someone (just take) …………….it. 34. They (know) ……………each other since they were children. 35. They are the most kind-hearted people he (ever meet) ………….. 36. He was late yesterday because he (be) ……………stuck in the traffic jam. 37. Last year, he (donate) …………..99% of his fortune to charitable organizations. 38. I (be) ………….a member of this non-profit organization since 1996. 39. She (make) ………….many new friends since she joined this English club. 40. Last month I (feel) …….happy when I cooked a meal for the elderly at a nursing home.

mọi người ơi giải hộ mình với ạ

Viết 1 đoạn văn khoảng 2/3 trang giấy thi viết về tinh thần đoàn kết chống lại địch bệnh covid-19 ở việt nam

phải giải thích nhé nhanh lên 4h mình nộp bài giải thích dài vào mới có ctlhn mình cảm các bạn hhhhhhhhhhhhhhheeeeeeeeeeeeeelllllllllllllllllllppppppppppppppppppp

tìm x , biết a) x - 1/3 = 1/7 b) x - 1/24 = 5/8 - 1/31 c) x - 1/5 = 3/35 x 7/6 d) x x ( 1/1x2 + 1/2x3 + 1/3x4 + .... + 1/99x100 ) = 99/100 e) 720 : [( 41 - ( 2x - 5 )] = 20

helpppppppppppppppppp nhanh nha + chi tiết 10-15' nx nha nhanh nhanh nhanh

1. Một lớp có 30 học sinh gồm 20 nam và 10 nữ. Có bao nhiêu cách chọn 2 học sinh nam thi toán, lý và 2 học sinh nữ thi hóa, sinh? (Mỗi học sinh thi một môn) 2. Cho tập A =(1,2,3,...,9). Có thể lập được bao nhiêu số có 5 chữ số, các chữ số đôi một khác nhau và các chữ số 2; 4; 5 đồng thời có mặt?

Thu gọn: A = (a + 1)(a + 2)(a^2 + 4)(a - 1)(a^2 + 1)(a - 2)

Complete the following sentences with the correct form of the words in brackets, using repeated comparatives. 1.It's getting (difficult) __________________________ to find a good job these days. 2.Thanks to the progress of science and technology, our lives have become (good) _______ ______________________. 3.Thanks to the great effort of doctors and nurses, her health is getting (good) __________ 4.Day by day we are all getting (old) ________________________________. 5.Nowadays everything is getting (expensive) _________________________________. 6.The winter is coming, it is getting (cold) _____________________________. 7.The race car was running (fast) ________________________ when it crashed into a tree. 8.It got (dark) ____________________________ as we deeper into the cave. 9.Things are getting (expensive) __________________________________these days. 10.Cathy got (bored) _______________________________ in her job. In the end, she left. 11.My bag seemed to get (heavy) ___________________________ as I carried them. 12.As I waited for my interview, I became (nervous) ________ 13.Healthcare is becoming (expensive) _____________________________________. 14.As the conversation went on, Tom became (talkative) ___________________________. 15.The company’s share price went (high) __________________________________.