1). … is a large amount of water quickly covers a place that is usually dry land.
1.Earthquake
2.Flood
3.Volcano
2). If we are not careful … will kill many of animals and plants.
1.protection
2.packaging
3.pollution
3). … knocks, don’t open the door.
1.Whoever
2.Wherever
3.Whenever
4). … are those who try to get as close as they can to take dramatic pictures of some dangerous places.
1.Teachers
2.Scientists
3.Journalists
5). She … …. English well.
1.isn’t speaking
2.doesn’t speak
3.don’t speak
6). I have been doing my homework …
1.since morning
2.two hours ago
3.in the morning
7). At this time yesterday Richard … .
1.was still sleeping
2.is still sleeping
3.slept
8). My friend … two days ago.
1.reads
2.read
3.did read
9). These flowers … in the garden by my Granny last spring.
1.planted
2.plant
3.were planted
10). All the litter … … next weekend.
1.is cleared
2.was cleared
3.will be cleared
11). If it … tomorrow, I … at home.
1.will rain, will stay
2.rains, stay
3.rains, will stay
12). When she … the book, she …. it to the library.
1.finishes, return
2.finishes, will return
3.will finish, will return
13). Kate … your mother, if you … her.
1.meet , ask
2.meets , asks
3.will meet, ask
14). My friend explained that he … that film … .
1.saw , two days ago
2.had seen, two days before
3.will see, two days later
15). Sam asked his teacher ... him with the essay.
1.to help
2.helps
3.is helping
16). I wish I ... get up earlier.
1.can
2.could
3.will
17). Maggy taught ... how to play the guitar.
1.myself
2.sheself
3.herself
18). Parents watched him ... his exercises.
1.doing
2.is doing
3.was doing
19). Susan told that her mother … here before.
1.had been worked
2.worked
3.had worked
20). Julia is ... of the three sisters.
1.the youngest
2.the most young
3.the younger

Объяснение:... If not for your help, I would not have been able to finish the work yesterday. 2. If he had not come on time, this might not have happened. 3. If it rained, I would be soaked to the bone, as I was wearing a very light dress. 4. If you really enjoyed reading, you would always find time to read. 5. Where would you go if it hadn't been raining? 6.If it rains, I will stay at home. 7. If I said something like that to your aunt, she would think I was crazy. 8. I'll be at home in case you change your mind. 9. It is possible that he would have felt and behaved differently if the circumstances were different. 10. If you weren't so busy, we could go out for lunch. 11. If we didn't have luggage, we could walk to the station. 12. You would feel better if you didn't go to bed so late (to keep late hours). 13. We would not have missed the train if we had taken a taxi. 14. We could go to the skating rink if it wasn't so cold. 15. The play would have liked me more if it had not been so long. 16. You would feel good today if you took the medicine yesterday. 17. If I were in your shoes, I would spend more time outdoors. 18. You would know the language better if you read the books in the original. 19. If not for my illness, I would have already graduated from the university. 20. You wouldn't break the vase if you were careful. We might not have gotten lost if the night hadn't been so dark. 22. I will be back at six if I am not detained at the university. 23. If not for the rain, we could have gone out of town. 24. You would be healthy now if you had consulted a doctor on time. 25. If not for his illness, the family would have moved to the city.

Предлог (preposition) – самостоятельная часть речи. Обычно предлоги обозначают место, направление или время. Предлоги обычно ставятся перед существительным. Один и тот же предлог может переводится по-разному, в зависимости от контекста. Например, at the window = у окна; at 2 o’clock = в 2 часа. Будьте внимательны при переводе предлогов на русский язык (может быть большое количество вариантов)

Формы английских предлогов

Простые:

at – у, около, в, на;

in – в, на, за, через;

about – о, вокруг, у, по;

against – против, лицом к, на;

before – до, раньше, перед.

Производные (происходят от слов из других частей речи):

concerning – касательно, относительно;

including – включая, в том числе;

depending – в зависимости;

granted – при условии, что.

Сложные (включают в себя несколько компонентов):

alongside – около, рядом, у;

outside – вне, за пределами, за исключением;

within – внутри, в пределах, не далее;

wherewith – чем, посредством которого.

Составные (представляют собой словосочетание — включают в себя слово из другой части речи + 1 или 2 предлога):

because of – из-за;

instead of – вместо;

by virtue of – в силу, на основании;

for the sake of – ради;

with regard to – относительно,