1 Does she have to do her homework...? 2 How many football matches did he see last week? 3 What have they selected? 4 Tom has to go to the lecture, doesn't he? 5 Did they come here by bus or by car? 6 Have the children got lots of toys? 7 Who am I very grateful for the help? 8 By whom has the doctor been called? 9 Ann won't be able to keep her promise, will she? 10 Did I give the present to my aunt or my uncle? 11 Did he pass all his exams successfully? 12 What must she take 3 times a day? 13 How long did it take them to complete the work? 14 we had a good time yesterday, hadn't we? 15 did I think much or little of it? 16 has my sister ever lived in a village? 17 who was invited to...? 18 why did we have to speak louder? 19 there are no other things in the box, are there? 20 did they go to the museum or the theatre yesterday? 21 did he ring me up on coming home? 22 how long did a strong wind blow? 23 why did we go for a ride? 24 our country produces much oil, doesn't it? 25 did the boy see a plane or a bird in the sky? 26 will they discuss...? 27 what did they select? 28 how long did he have to wait for her? 29 John has a bath in the evening, hasn't he? 30 will they meet him at the concert or at work?