Khi đặt thanh nam châm A gần một thanh kim loại B thì thấy thanh kim loại B bị đẩy ra xa.Thanh kim loại B là A: sắt B: niken C: nam châm D:

Giải thích luôn giúp mình nhé Choose the letter A, B, C or D to indicate the underlined part that needs correction.

54.1 Complete each sentence with a suitable verb. 1 Tom refused ............................... any money. 2 Jill has decided not ............................... a car. 3 The thief got into the house because I forgot ............................... the window. 4 There was a lot of traffic but we managed ............................... to the airport in time 5 I‟ve arranged ............................... tennis tomorrow afternoon. 6 One day I‟d like to learn ............................... an aeroplane. 7 I shouted to him. He pretended not ............................... me but i‟m sure he did. 8 Why hasn‟t Sue arrived yet? She promised ............................... late. 9 Our neighbour threatened ............................... the police if we didn‟t stop the noise. 10 Ann offered ............................... after our children while we were out. 11 The teacher was very strict. Nobody dared ............................... during his lessons. 54.2 Make sentences with seem and appear. 1 Is Tom worried about something? He seems ................................................................ 2 Does Ann like Jack? She appears .................................................................................. 3 Is that man looking for something? He appears ............................................................ 4 Has that car broken down? It seems .............................................................................. 5 Have they gone out? They appear.................................................................................. 54.3 Complete each sentence using what or how with one of the following verbs: do say use ride cook 1 Have you decided what ............................... for dinner this evening. 2 Can you show me ............................... the washing machine. 3 Do you know ............................... if there‟s a fire in a building. 4 You‟ll never forget ............................... a bicycle once you have learned. 5 I was really astonished. I didn‟t know ............................... 54.4 Make your own sentences. Complete each sentence with to + infinitive. 1 Not many people can afford ......................................................................................... 2 I would like to learn ..................................................................................................... 3 One day I hope ............................................................................................................. 4 I wouldn‟t dare ............................................................................................................. 5 Sometimes I tend...........................................................................................................

Ngành công nghiệp có khả năng lớn nhất để thúc đẩy cho cả công nghiệp nặng lẫn nông nghiệp phát triển là A. Luyện kim B. Dệt C. Hóa chất D. Năng lượng

bác nào giải giúp em cái, cái này e chưa bt nhiều :((

Vẽ tự do (part 8) Khác ảnh part nãy

Bằng chữ số và KHHH hãy biểu diễn: 2 phân tử nitơ, 2 nguyên tử sắt, 5 phân tử khí hidro, 6 nguyên tử clo, 3 nguyên tử đồng, 5 phân tử nước (gồm 10H, 5O), 4 phân tử đá vôi (gồm 4Ca, 4C, 12O), 1 phân tử đường saccarozơ (gồm 12C, 22H và 11O).

So sánh P và Q, biết: P =2010/2011+2011/2012+2012/2013 Q=2010+2011+2012/2011+2012+2013 giải thik chi tiết từng bước giải xong mik vote 5 sao cảm ơn nhiều ạ giúp mik với

Bằng pphh phân biệt các dd sau a) NaOH, KCl, NaNO3 , K2SO4, HCl b) O2, H2 , Cl2 , CO2 , HCl (khí)

giup mk vs nha mk can ngay va mk cam on