Помогите плиз с английским

Concrete is the name given to a mixture of particles of sand and gravel, theaggregate, bound together with cement, the matrix. Fine aggregate is naturalsand which has been washed and sieved to remove particles larger than5 mm, and coarse aggregate is gravel that has been crushed, washed andsieved so that the particles vary from 5mm up to 50mm in size. The fine andcoarse aggregate are delivered separately. By combining them in the correctproportions, a concrete with very few voids in it can be made.The cement most used is ordinary Portland cement. It is manufactured byheating a mixture of finely powdered clay and limestone with water to atemperature of about 1200ºC, at which the lime and clay fuse to form a clinker.This clinker is ground with the addition of a little gypsum to a fine powder ofcement. Cement powder reacts with water and its composition graduallychanges; the particles of cement bind together and adhere strongly to materialswith which they are mixed. Cement hardens gradually after it is mixed withwater. Some thirty minutes to an hour after mixing with water the cement isno longer plastic and it increasingly hardens to a dense solid mass after7 days.The materials used in reinforced concrete are weighed and mixed in largeconcrete mixers. It is not economical for builders to employ expensive mixingmachinery. Concrete for foundations and floors is usually delivered to siteready mixed. Ready-mixed concrete is carefully prepared and delivered tosite by lorries

teaches people immorality. Помогите плиз. Спасибо.

нужно к каждому предложению сделать одно вопросительные и одно отрицательное

agree,not be

Hi,I'm Sarah and I 1)...................... in London .I 2)...................... playing games ,especially board games like Monopoly and Scrabble.My sister also 3)...................... games .We 4).................... Scrabble at the moment but we 5).....................We often 6).......................... because I 7)....................... Scrabble but she 8).....................Monopoly. Today my sister 9).................... very happy because I 10)......................again!

Заранее спасибо!)

When some people meet ... they think i am my twin brother,David. They do not know the difference. Our school friends know; they say i am more intelligent than .... In reality, it is easy for them because we study in different classes. When our mother looks at .... she always sees the difference. We can't play jokes on ....! When people visit our house they also know the difference.David always uses the computer and he plays on ... all the time. What do you think? look at the picture of .....Is the difference clear to ....
Вот такие слова нужно вставить:Them, you, her , us , it, me,him,us.
Заранее спасибо!!!