Transform the sentences according to the mod- els to practise the use of the complex subject: a) model: it is expected, that he will enter the university. he is expected to enter the university. 1. it is known, that the scientific knowledge will grow. 2. it is believed, that the scientific knowledge has become more com- plicated. 3. it is said, that he will come in a week. 4. it is ex- pected that he will test it experimentally. 5. it is known that he is a good physicist. b) model: will he take part in the conference? - yes, he is certain to take part in it. 1. will mr. brown come to our computer centre? 2. will he apologize to her? 3. will he congratulate me on my birthday? 4. will they buy new computers? 5. will mr. mitchell come to. russia again? C) model: do you know james mitchell? - yes, i happen to know him. 1. do you know this researcher? 2. did you meet him in moscow? 3. did you see this new film? 4. does james know this scientist? 5. did you see her?​

1. It is known that the scientific knowledge will grow.
- The scientific knowledge is known to grow.

Explanation: We can use "is known" to change the sentence structure and make it a complex subject.

2. It is believed that the scientific knowledge has become more complicated.
- The scientific knowledge is believed to have become more complicated.

Explanation: We can use "is believed" to change the sentence structure and make it a complex subject.

3. It is said that he will come in a week.
- He is said to come in a week.

Explanation: We can use "is said" to change the sentence structure and make it a complex subject.

4. It is expected that he will test it experimentally.
- He is expected to test it experimentally.

Explanation: We can use "is expected" to change the sentence structure and make it a complex subject.

5. It is known that he is a good physicist.
- He is known to be a good physicist.

Explanation: We can use "is known" to change the sentence structure and make it a complex subject.

b) Model: Will he take part in the conference? - Yes, he is certain to take part in it.

1. Will Mr. Brown come to our computer center?
- Is Mr. Brown certain to come to our computer center?

Explanation: We can use "is certain" to change the sentence structure and make it a complex subject.

2. Will he apologize to her?
- Is he expected to apologize to her?

Explanation: We can use "is expected" to change the sentence structure and make it a complex subject.

3. Will he congratulate me on my birthday?
- Is he going to congratulate me on my birthday?

Explanation: We can use "going to" to change the sentence structure and make it a complex subject.

4. Will they buy new computers?
- Are they planning to buy new computers?

Explanation: We can use "Are they planning" to change the sentence structure and make it a complex subject.

5. Will Mr. Mitchell come to Russia again?
- Is Mr. Mitchell likely to come to Russia again?

Explanation: We can use "likely to" to change the sentence structure and make it a complex subject.

c) Model: Do you know James Mitchell? - Yes, I happen to know him.

1. Do you know this researcher?
- Yes, I happen to know this researcher.

Explanation: We can use "happen to know" to change the sentence structure and make it a complex subject.

2. Did you meet him in Moscow?
- Yes, I happened to meet him in Moscow.

Explanation: We can use "happened to" to change the sentence structure and make it a complex subject.

3. Did you see this new film?
- Yes, I happened to see this new film.

Explanation: We can use "happened to" to change the sentence structure and make it a complex subject.

4. Does James know this scientist?
- Yes, James happens to know this scientist.

Explanation: We can use "happens to" to change the sentence structure and make it a complex subject.

5. Did you see her?
- Yes, I happened to see her.

Explanation: We can use "happened to" to change the sentence structure and make it a complex subject.