Какой правильно? have you seen dadилиhas you seen dad - я думаю этот​

Первый- так как с you используется have

Правильно  Have you seen dad ?  

Потому что для  

 He, she , it - has;does

 I , you, we, they - have ; do

1) Hundred of sportsmen will take place in the compititions.
2) The compititions will take place in Great Britain.
3) I wonder why he has not come yet . He will come on time If he doesn't have to come to bakery.
4) What happened to Enn? I have not seen her long
5) Do you know where Mary is? She has moved from here a month ago.
6) She will phone you as soon as she comes
7) Nobody will make her go for a walk If the weather is fine.
8) He never advises, doesn't he? - Yes, he doesn't, because nobody listens to him.
9) He has lost his way and could not find a way. It was night and he didn't know what he could did and was very glad seeing a man coming along.
10) Ask him when he finishes to drow his picture.
11) This book will be talked about a lot.
12) I know him long, but we have not seen since 2005
13) I will have to make a report on Friday, but I have not managed to see all the material.
14) I will not have enough books to prepare well .
15) They will give me some books, which I have to bring back the day after tommorow
16) He said that the supper would be very tasty
17) I don't like to drink coffee, I like to have a cup of tea more
18) Where are you going? - I am going to the computer service to listen to new records. I go often there
19) She has to get up very early this morning
20) Does she have lunch? - No, she is learning poems
21) Make a table while I will be cooking dinner
22) If you take a taxi, you will delay

When a young boy, Mr Wilson used to go fishing.

When a young boy, Mr Wilson used to build sandcastles.

When a young boy, Mr Wilson used to ride a bike.

When a young boy, Mr Wilson used to drink milk.

When a young boy, Mr Wilson used to go skating.

When a young boy, Mr Wilson used to play with his dog.

When a young boy, Mr Wilson used to watch films about Indians.

Если нужно, можешь добавить в конец предложений маркер времени

Например, every morning (каждое утро), every week (каждую неделю), twice a month (два раза в месяц) и т.п