chuyển các câu hỏi bắt đầu bằng từ hỏi "H/WH" sau sang câu bị động:
Why didn`t they help him?
How many games has the team played?
Where do people speak English?
Who are they keeping in the kitchen?
How can they open this safe?
What books are people reading this year?
How did the police find the lost man?
Who look after the children for you?
How long have they waited for the doctor?
What time can the boys hand in their papers?
Who lend you this book?
How many marks does the teacher give you?
Why didn`t they help him?
Why wasn’t he helped?
How many games has the team played?
How many games have been played by the team?
Where do people speak English?
Where is English spoken?
Who are they keeping in the kitchen?
Who are being kept in the kitchen?
How can they open this safe?
How can this safe be opened?
What books are people reading this year?
What books are being read this year?
How did the police find the lost man?
How was the lost man found by the police?
Who look after the children for you?
By whom are the children looked after?
How long have they waited for the doctor?
How long has the doctor been waited for?
What time can the boys hand in their papers?
What time can the boy’s papers be handed in?
Who lend you this book?
By whom is this book lent to you?
How many marks does the teacher give you?
How many are you given by the teacher?
