Длина беговой дорожки вокруг поля стадиона 400м.За 6мин 40с Андрей пробежал 4 круга,а Николай-5 кругов.На сколько метров в секунду скорость Николая больше скорости Андрея?

Cколько различных пятизначных чисел можно составить из цифр 1, 2, 3, 4, 5, 6, если цифры  в числе не повторяются?

Помогите пожалуйста очень надо!!

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1. The radio says it _ tomorrow

a)snows b)is snowing c)will snow

2.Of course we know Mary.She is good friend _

a)of theirs b)their c)theirs

3.How _ you get to work?

a)do b)does c)are

4.Look at those black clouds.It _ rain

a)will b)is going c)is going to

5.John works for our firm.-Ready?I _ go and see him at once

a)will b)am going c)going to

6.He _ in the office every day from night to six

a)working b)works c)are working

7.Mary will type the contract very _

a)quickly b)quick c)quicker

8.Do you _ everything for your seminars?

a)have b)have got c)has

9.I _ my old friends for a long time and I'd like them to come to my party

a)hasn't seen b)haven't seen c)doesn't see

10.The academy of Municical Administration _ a modern library and many computers

a)have b)have got c)has

11.Tom has lost his passport again.It's the second time he _ it

a)lose b)lost c)have lost

12.What problems _ you _ at the meeting?

a)will..discussed b)are..going to discuss c)does..discuss

13.The Acadeny _ facilities for physical training in sport clubs

a)provides b)provide c)is providing

14.I have never seen anyone who eats _ exotic food than you do

a)much b)more c)the most

15.We _ an appointment with our partners in Room 308

a)have got b)has c)is having

16.He _ the hotel,took a taxi and drove to the railway station

a)left b)leaves c)has left

17.The manager _ the letter.Can you post it at once?

a)sign b)have sighned c)has signed

18.Are you doing anything special _ the weekend?

a)in b)at c)while

19.When I _ at the railway station, I went to the booking office and bought a ticket

a)arrives b)arrived c)has arived

20.Are these your reports?No,they are _

a)David's b)davids c)of David

Не когда не отвечай оскорблением на оскорбление.Если средства или обстоятельства не позволяют тебе блистать,не старайся скрывать лишений.Никогда не делай долгов.Лучше терпи нужды.поверь,она не так ужасна ,как кажется,и во всяком случае она лучше неизбежности вдруг оказаться бесчестным или прослыть таковым. Помогите проверить орфографию..