Complete the sentences with one of the following (a, b, c, d) verb forms.
7. I Greek history since last October.
a) have been studying b) study; c) have studied; d) am studying
8. He to the bus station and didn't stop to talk with us.
a) had hurried; b) had been hurrying; c) hurried; d) was hurrying
9. When she ………….. out of the house, she stopped to admire the roses.
a) had gone'; b) was going; c) went; d) had been going
10. He picked up the book he ………..
a) read; b) had read; c) had been reading; d) was reading
11. John ………… a letter by the window. Tell him he is wanted on the phone.
a) writes; b) has been writing; c) has written; d) is writing
12. I know Peter, we in the same bank.
a) have been working; b) work; c) are working; d) have worked

zero conditional

1) if you mix black and white, you get gray

2) if you freeze water, it turns into ice

3) if you heat ice, it turns into water

first conditional

1) if it rains, i will stay at home

2) if you go with me, i will show you something interesting

3) if you study well, you will have good marks

second conditional

1) if i won a lottery, i would raise money for a charity

2) if i lived 200 years, i would see my great-grandchildren

3) if i had more free time, i would be able to travel around the world

third conditional

1) if i had met you before, i wouldnt have had such a bad ex-wife

2) if i had met many places around the world, i would have been able to give a talk about travel experience

3) if you had got up earlier, you wouldnt  have missed your flight

ответ

Zero conditional: If you heat up water to 100 degrees it boils. If you get home late try not to wake up the baby. When I drink Tequila I vomit.

1st conditional: If you eat too much sweets you will become fat. I am free tomorrow afternoon I will give you a ring. What will you do if you lose your job?

2 conditional: If Jack were happy in his job he wouldn't look for another one. If I were you I would see the doctor. What would they do if their boss were away on vacation?

3 conditional: I would have helped you with packing if you had told me  about moving houses. If Garry had studied harder he wouldn't have failed the exam. We wouldn't have found out about Jane's wedding if her sister hadn't written about it on the internet.

Mixed conditional: If Pete was/were smart enough he would have told us about the accident 2 days ago. I would have bought the package tour last month if I had 7 days off.  If we weren't always so hungry at work we wouldn't have ordered out that Thai meal yesterday.

Объяснение: