6  The doctor asked him if he slept at least eight hours a day.

1.
'I’m really stressed out! I’ve had three sleepless nights thinking about my exam.'
('Tôi thực sự căng thẳng! Tôi đã có ba đêm thức trắng suy nghĩ về kỳ thi của mình.')
Đáp án: She said she was really stressed out, and that she had had three sleepless nights thinking about her exam.
2.
'I can’t concentrate! It’s too noisy in here.'
('Tôi không thể tập trung! Ở đây quá ồn ào.')
Đáp án: He said he couldn’t concentrate because it was too noisy in there.
3.
'She was very upset at first but she’s fine now.'
('Ban đầu cô ấy rất buồn nhưng giờ cô ấy ổn rồi.')
Đáp án: She said she had been very upset at first but she was fine then.
4 
'I don’t think taking risks too often is a good idea.'
('Tôi không nghĩ rằng việc liều lĩnh quá thường xuyên là một ý kiến hay.')