ответить на вопросы по тексту animals and plants . 1. what do living things include? 2. саn we say that we know all the plants and animals that live on our planet? 3. in what way are planet and animals different? 4.why is it not always true? 5.the text says that some plants are small and some are very big. is that true about animals? can you give examples? 6.why can`t we live without plants and animals? in what ways do we use them? 7.why is oxygen plants "breathe out" so important for people?

1 Living things include all things living. Assuming you're talking about Biotic and Abiotic factors in ecosystems, Biotic factors being the living things, such as plants and animals, and Abiotic factors being the nonliving things, such as moisture, sunlight, wind, sun, etc. 

I think that a good secret agent must be an excellent driver because it's always important to drive fast in order to hide from people that are following him.
A good secret agent can swim underwater for extended periods. If a person is a perfect agent, he/she should probably swim well because he/she can be given some difficult tasks to complete, including tasks that are connected with seas and oceans. So something can get wrong, and an agent should be able to make a right decision while being underwater.
A good secret agent mustn't tell anyone what his/her job is. One of the main thing of this profession is high secrecy. If he tells about it by the accident, it can cost him a live because there are often a lot of people who are hunting for him.
A good secret agent needs to be extremely corageuos. Only a brave person is able to complete all missions perfectly. He/she shouldn't be afraid of any fears.

Dear [Name], Thank you for your letter. Has it really been two months since i wrote? I'm sorry, but I was very busy lately.  Do you remember that soon will be summer holidays? I would like to spend it with my friends and, of course, with you. I want to go to the cinema and see some interesting films. I like playing some games. For example. football, volleyball and tennis. Do you like it? Also we can spend time on beach, we can swim, play interesting games and talk about our lifes.  Hope you like these ideas. How are you? Please write to me soon. ПЕРЕВОД:Уважаемый [Имя за Ваше письмо. Был ли он на самом деле было два месяца, так как я написал? Мне очень жаль, но я был очень занят в последнее время. Вы помните, что в скором времени будет летние каникулы? Я хотел бы провести его со своими друзьями и, конечно, с вами. Я хочу пойти в кино и посмотреть интересные фильмы. Мне нравится играть в некоторые игры. Например. футбол, волейбол и теннис. Вам это нравится? Также мы можем провести время на пляже, мы можем плавать, играть в интересные игры и говорить о нашей жизни. Надеюсь, что вы, как эти идеи. Как вы напишите мне в ближайшее время.