Ответ:

1 "I'm trying to be more health conscious," said Helen.

Helen said she was trying to be more health conscious

2 She said,"I'll come by later."

She said that she would come by later.

3 He said, "She can start work on Monday."

He said that she could start work on Monday.

4 He said, "He should exercise more".

He said that he should exercise more.

5 "I may go to university to study medicine," he said

He said that he might go to university to study medicine.

6 He asked, "Shall I make some tea?"

He asked if he should make some tea.

7 She said, "They won't arrive on time."

She said that they wouldn't arrive on time.

Ответ:

2. She said she would come by later

3. He said she could start work on Monday

4. He said he should exercise more

5. He said he might go to university to study medicine

6. He asked if he should make some tea

7. She said they wouldn't arrive on time