1.Which
2. Which
3. Which
4. Which
5. Which
6. Where
7. Which
8. Who
9. Which
10. Which
11. Who
12. Where
Grandpa - это разговорное слово, на русский может переводиться как "дед".
Grandfather - это уже нормальное слово, которое переводится как "дедушка".
Where are you working?
What are you reading?
Where is Mary swimming?
What is Ben wearing? (В этом предложении не совсем уверена)
Where are you sleeping?
Where is he going?
What do you watch?
Where are Bob and Jill skating?
Where are you running?
What is she taking? (Тоже сомневаюсь)
В двух предложениях я сомневаюсь в порядке слов, но вроде всё верно.
1 Oh, no, they will have moved to their new house by that time.
2. Oh, no, we will have made a decision by that time.
3. Oh, no, they will have finished by that time.
4. Oh, no, he will have graduated by that time.
5. Oh, no, I will have forgotten you by that time.
6. Oh, no, I will have left for Scotland by that time.
7. Oh, no, she will have received my letter by that time.
<span>8. </span>Oh, no, I will have gone to the swimming-pool by that time.
Посетите Каюту Питера, первый дом города.
Как-то так...