Write negative sentences . use the present prefect . 1 . (meet) they . 2 (buy) she new lamp 3 (watch) he it 4 (read we book 5 (build) they house 6 (help). it 7 (see). you 8 (ask). she it 9 ( be). we moscow 10 ( wash). he cup

(meet) They have not met him. 
2 (buy) She has not bought a new lamp
3 (watch) He has not watched it 
4 (read ). We have not read the book 
5 (build) they have not built.the house 
6 (help). It has not helped me 
7 (see). You have not seen him 
8 (ask). She has not asked.about it
9 ( be). We have not been,to Moscow 
10 ( wash). He has not washed his cup

Internet - a great invention of our time. Like almost everything in our lives, the Internet can carry and use, and harm. They say there is a lot of anecdotal information.Internet - a boundless expanse of information and communication, which is easily lost. Often, I read something useful and interesting and somehow unnoticed was on unfamiliar advertising site where the last half hour reading the gossip like, "scientists have found something in the depths of the earth" ... or hours to rewrite the social networks with friends rather than to meet and go for a walk.Internet is very useful, because it is a huge database and knowledge where you can find any thing you want - from movies and music, which you are interested, a huge number of books, newspapers and magazines, to simple recipes. It helps in learning. There are some very useful sites, such as where to find information in an understandable form all - events, people, things, events.

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В этом задании нужно использовать третью форму глагола (Ved; отмечено жирным) в форме Present Perfect (т.е. по формуле: has/have + Ved) и употребить её так, чтобы логически подытожить данные ранее высказывания (чит. силлогизмы). Как известно, есть правильные и неправильные глаголы — поэтому где-то мы используем т.н. супплетивизм корней, то есть когда корень разнится в зависимости от формы (go - went - gone), или же суффиксацию, т.е. добавляем к основе суффикс -ed (improve - improved - improved). Поэтому выходит так:

Tom is looking for his key. He can't find it. — He has lost his key. (Он потерял ключ.)Margaret can't walk and her leg is in plaster. — She has broken her leg. (Она сломала ногу.)Last week the bus fare was 80 pence. Now it's 90. — The bus fare has gone up. (Плату за проезд на автобусе подняли.)Maria's English wasn't very good. Now it is better. — Her English has improved. (Её английский улучшился.)Dan didn't have a beard before. Now he has a beard. — He has grown a beard. (Он отрастил бороду.)This morning I was expecting a letter. Now I have it. — The letter has arrived. (Письмо пришло.)The temperature was 20 degrees. Now it is only 12. — The temperature has fallen. (Температура упала.)7.3

В этом задании нужно сделать практически то же самое: использовать третью форму глагола в форме Present Perfect, но употребить её не в предложении-следствии, а в ответе. Кроме того, здесь используются краткие формы глаголов, то есть 's и 've (вместо has и have) — разница с полной формой, как известно, в том, что краткая форма — атрибут разговорной речи.

No, thank you. I've just had lunch.I'm afraid, he's gone out.Wait a minute! I've not finished yet.No, I've done it myself / already.Have you found a place to live / anything?I've not decided yet.No, she's come back.