а) сколько граммов содержиться в одной четвёртых кг, в четыре пятых кг, в три вторых кг, в одинадцать десятых.
б) сколько минут содержится в одной пятых ч, в две третьих ч, в пять четвёртых ч, в одинадцать десятых. Помогите пожалуйста.

3. Choose the right word

A. All, both or each?
1) My brother and I are … good football players.
2) In my class … the pupils are ready to help protect the environment.
3) There were three winners in the competition and … winner got a wonderful prize.
4) … my friend and I like to watch films about nature and animals.

B. Between оr among?
1) We are all hard-working in my class. There are no lazy pupils … us.
2) I'm going to prepare a surprise for Jane, but that's … you and me.
3) This book is … two thick dictionaries on the shelf.
4) Unfortunately, Michael is not … my best friends.

C. What or How?
1) … a sunny day we are having today!
2) … lovely the flowers look on the green grass!
3) … dangerous forest destruction is!
4) … strange questions they are! I don't know how to answer them.