Буква a там артикль такой потому что в текст не сказано
If I wake up early tomorrow , I shall do my home tasks
if I send an email to my friend , he will come here to help me
if I don't feel well at the weekend , I shall not go to the mountains
if my teacher is not at school tomorrow , I shall stay at home
if I have enough money , I shall book a ticket
<span>Nature is all around us. We see it every day. It’s the sunset, the sunrise, the song of birds, the blooming оf flowers, the wind that blows, etc. These signs are an integral part of our lives. On the one hand we cherish these natural blessings, on the other hand – we don’t appreciate fully their importance. Thus, our future generations can be cut from these treasures. They might see less of natural wonders, because the humanity gradually destroys forests and kills some species of animals. It all happens due to industrial revolution and the growing number of chemical plants. Humans are the only species on our planet that consciously manipulate the environment. Unfortunately, we are poor leaders in this hierarchy, if we can’t increase the awareness of ecology. People are too self-centered to notice how badly they treat the surrounding environment. For thousands of years they lived in harmony with nature till the development of civilization. They could use the natural riches limitlessly, while today we have to use all the resources sparingly. Pollution is another threat to nature. So many cities today are trapped in air and noise pollution that comes from motor vehicles and factories. That’s why some people tend to live in the countryside, where the air is much cleaner and fresher. World industries throw about 1000 million tons of dust and harmful substances into atmosphere. As a result many rare species of animals and plants die out, lakes dry up, forests disappear. Obviously our nurtured nature is in danger. And if people don’t take serious measures to save it, our planet can soon become lifeless.</span>
Итмь1 Я был целый день лома вчера I was at home all day yesterday
2 Они уехали из Лондона They left London
3 Мы были очень удивлены We were very surprised
4 Он был полон энергии He was full of energy
5 Я решил вступить в фитнес клуб I decided to join a fitness club
1 Я занят I am busy
2 Она работает слишком много She works too much
3 Мы часто ходим за покупками We often go shopping
4 Им нравится рок-музыка They like rock music
5 Он никогда не пьет алкоголь He never drinks alcohol