The key to exercise solutions in chapter 5c - Grammar in use for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Look at the table and answer the questions.
Report the questions and commands.
Answer
1) We report a question that starts with a question word by using the same question word.; 2) We report a yes/ no question by using if / whether.; 3) Tenses change in reported questions in the same way as in reported statements. However, they are used in the affirmative not interrogative form.; 4) We report a positive / negative command with tell + somebody + (not) to-infinitive.
1) Pat asked Sam if / whether they could swim in the river.; 2) Mum told me to turn off the light.; 3) Jack asked if / whether I was / we were going to the zoo.; 4) She asked me what time it started.; 5) He told me not to use my car.; 6) John asked me why I had thrown it away.