1.They haven't released the young eagles into the wild yet. (слово-маркер yet указывает на необходимость употребления Present Perfect)
2.The female eagle was tired. She had been hunting for five hours. (есть маркер for + период времени, значит, нужен Perfect Continuous. А поскольку первое предложение в Past Simple, то и во втором тоже пишем Past)
3.James had taken pictures of many species of eagle by the end of his trip. (сочетание с предлогом by указывает момент, к которому завершилось действие - это маркер Past Perfect)
4.Have the eagles been building their nest for the last two weeks? (Здесь тоже акцент на длительности действия, начавшегося в и длящегося до момента речи, так что используем Present Perfect Continuous)
Вопросы (один к каждому предложению):
1. What Robert's sister likes in the morning? (Black coffee).
2. How often dad went fishing to the lake with his brother? (Twice a month).
3. Where they will book a room during their honeymoon? (At a hotel in Madrid).
4. Where you just seen our neighbour? (In the supermarket).
5. How many polar bears in the zoo? (Five).
6. Why Bob was a successful businessman? (Because he owned 3 clothes stores in the New York).
7. Where you see hundreds of bright stars? (In the sky).
8. Who is cooking Mexican food in the kitchen? (Julia).
