С исчисляемыми в единственном числе пишем а или an. Со множественным числом и с неисчисляемыми пишем some.
Объяснение:
1. It's time to do shopping. We need some food and a bottle of mineral water.
2. It's a very small town. There are some nice buildings and a museum in it.
3. He has a wife, a son here and some relatives abroad.
4. Let's buy this vase. I have some money with me.
5. We can prepare for the exam now. I brought some books from the library.
6. She likes animals a lot. She has a dog, a mouse, and some cats at home.
7. We must take some exams .
8. We met some interesting people at the party yesterday.
9. He has some victories during the season.
Nowadays, the possibility of making exact copies of plants, animals and human beings is quite realistic.
Cloning has a lot advantages. Cloning is a great step forward in science, which can be beneficial as it could be used to repopulate endangered animal species such as the giant panda or black rhino. Moreover, Cloning may provide tissues and organs for transplantation and therefore save lives of people who body parts fail to function.
However, it has disadvantages too. Animal and human cloning is expensive and highly inefficient, as more than ninety percent of cloning attempts have failed so far. Secondly, genetically modified creatures normally have poor health and do not live long.
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