В 5,4 л воды объемы водорода и кислорода находятся в отношении 1:8. сколько литров водорода содержится в заданном объеме

1. Open the brackets. Put the verb into the right tense.

1. I hate living in Seattle because it (rain, always). 2. Everything (be) so different, and I (try) to adapt to the new way of life here. 3. When I (walk) into the busy office, the secretary (talk) on the phone with a customer, several clerks (work, busily) at their desks, and two managers (discuss, quietly) methods to improve customer service. 4. He (not to do) anything if you (not to tell) him to. 5. When the teacher (to come) into the classroom, all the pupils (to sit) at their desks. 6. When he (to see) you? - He (to see) me this week. 7. You (to find) your key which you (to lose) before? 8. The first time this man (to go) abroad (to be) three years ago. 9. When she (to enter) the room, her daughter (to draw) a picture. When she (to finish) drawing, she (to say). "Look! What a funny dog I just (to draw)! You (to like) it?" 10. Where you (go) this evening? I (not go) anywhere. I (stay) at home. I (write) some letters.

2. a) Open the brackets. Put the verb in the right tense of the passive voice:

1. Soon he (to send) to a sanatorium. 2. The book (to discuss) at the next conference. 3. The composition must (to hand) in on Wednesday. 4. Yesterday he (to tell) to prepare a speech. 5. The article (to publish) last week, if I am not mistaken. 6. The lecture (to attend) by all of us yesterday. 7. A taxi (to call) fifteen minutes ago, so we are expecting it any moment. 8. The young man (to introduce) to me only a couple of hours ago, but it seems to me that I've known him for years.

b) Change the sentences to the passive voice:

1. People asked me the way three times 2. Lots of people had parked their cars on the pavement. 3. The helpers have not packed the boxes yet. 4. They are still preparing the food. 5. They will launch the new ship next week.

3. Put the following into indirect speech:

1. “It's time we began training for our next match,” the coach said to them.

2. “If you leave home at six, you should be here by nine,” he said to me.

3. “If it rains this afternoon it will be too wet to play the match tomorrow,” the captain said.

4. “I meant to plug in the electric blanket but I plugged in the electric kettle by mistake. I'm always doing silly things like that,” she told her guest.

5. “I was intending to do it tomorrow,” he said, “but now I don't think I'll be able to.”

6. “Bill should do very well at the university, Mrs. Smith,” said the headmaster. “He's doing very well here.”

7. “I don't think your father likes me,” said the young wife. “You mustn't think that,” said her husband; “it is just that he is old and finds it hard to get used to new people.”

8. “The steak is overdone again. I'm not complaining; I'm just pointing it out,” said her husband. “I wish you'd stop pointing things out,” said his wife.

9. “It will take a little time to look up your file,” said the clerk.

“Is it worth waiting,” said Ann, “or shall I go away and come back later?”

10. “Would you mind getting out of the car?” said the driver. “I have to change a wheel.”

“Shall I help you?” I said.