Надо ! the first materials that people used were stone, wood and bones, but around 4000bc the first metal tools appeared. they were made of copper.we don't know how people discovered copper.it was probably when people put some rocks round a fire and the fire melted the metal in the rocks.in fact, people had metal before that time. they already knew about gold and silver , but these were too soft for tools. on the other hand, copper is hard enough and copper tools were much sharper than stone tools. soon after people started using copper, they discovered that if you mix it with a little tin, you get an even stronger alloy.we can this bronse.

Первыми материалами, которые использовали люди были камень, дерево и кость, но около четырех тысяч лет до нашей эры появились первые металлические орудия труда. они были сделаны из меди. нам до сих пор неизвестно, каким образом была открыта медь. возможно, это произошло таким образом: люди положили камни вокруг огня и огонь растопил металл, содержащийся в камнях. фактически, люди уже имели представление о металле и раньше. они уже открыли золото и серебро, но они были слишком мягкими металлами, чтобы сделать из них орудия труда.с одной стороны, медь - достаточно твердый металл и медные орудия труда были намного острее своих каменных собратьев. вскоре после того, как люди начали использовать медь, стало понятно, что если в нее добавить немного олова, то получится более твердая смесь. в наше время мы называем ее бронзой.

1) London attracts millions of tourists evety year.  

2) Mexican food is hot and spicy.

3) Ed's cafe servers breakfast and lunch daily.  

4) Joe can eat a big tub of ice cream all by himself.  

5) What would you like to order, madam?  

6) Andy is creative because he lets his imagination run wild.  

7) Her favourite dessert is apple pie.  

8) Can I have a slice of bread, please?  

9) Heat the oil and fry the mushrooms for 10 minutes.  

10) Can you get a carton of juice from the drinks aisle?  

1) There is some sugar in the cupboard.  

2) How many onions do we need?  

3) There isn't enough salt in the soup.  

4) John likes drinking cola.  

5) Can I have some juice, please?  

6) He went to the bakery to buy some bread  

7) There aren't any strawberries in the fridge.  

8) Do you fancy ordering take away?  

9) There's very little flour in the cupboard.  

10) Running is a good form of exercise.  

11) There are a lot of bananas in the bowl.  

12) I can't go to the dinner party tonight.

13) I'd like to have a salad, please.  

14) Anna eats too many sweets.

Объяснение:

A. I think that teens should help with household chores voluntarily. If parents had children for the sole sake of cleaning around the house, then they shouldn't do it. If parents and children have a lovely relationship, it would be only natural of the teens to want to help. In conclusion, I think if you raise your children with pure love then, they will become lovely people.

B. I don't think children should take care of pets. In order to raise a pet properly you need to offer love. It takes patience and effort to raise a pet. Most children are simply not mature enough to treat a pet without abuse of any sort.

But, if a child takes care of a pet under the guidance of an adult, then it is completely acceptable and even encouraged. It demonstrates the child how to take care of a pet and carry out simple routine tasks. Like, brushing your cat, walking the dog, cleaning food bowls. In future, children would be more familiar with it. In conclusion, if a child is not the only one who is responsible of taking care/raising a pet - it is lovely and fine.

Объяснение:

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