1.On coming home he rang me up.
Did he ring me up on coming home?
2.A strong wind blew the whole day. When did a strong wind blow?
3.We went for a ride to see the places of interest. Why did we go for a ride?
4.Our country produces much oil. - Our country produces much oil, doesn’t it?
5.The boy saw a plane in the sky .-Did the boy see a plane or a bird in the sky?
6.They will discuss different problems of teaching languages. – Will they discuss different problems of teaching languages?
7.They selected the books i had asked for.What books did they select?
8.He had to wait for her for an hour.How long did he have to wait her?
9.Joan has a bath in the evening. Joan has a bath in the evening, doesn’t he?
10.They will meet him at the concert. Will they meet him at the concert or in the park?
11.They are going to leave school this year. Are they going to leave school this year?
12.She has to do her housework every morning.What does she have to do every morning?
13.He saw a few volley_ball games last week. How many volley-ball games did he see last week?
14.He liked to read a book before going to bed. - He liked to read a book before going to bed, didn’t he?
15.We must wait for him here. Must we wait for him here or there?
16.She had to sit up late yesterday. Did she have to sit up late yesterday?
17.You have learnt about very important things today.What have you learnt about today?
18.We shall reach the airport in the minutes. What shall we reach in the minutes.
19.You are not free now. -You are not free now, are you?
20.This book is much read. How often is this book read?