and choose the best. 5. If you don't know the word, you should look it ... in the dictionary. 6. Where have you been? I've been looking ... you all over. 7. Where is little Ann? Who is looking ... the baby?

Решение:

Вставляем подходящие предлоги:

1. 5. If you don't know the word, you should look up in the dictionary.
2. 6. Where have you been? I've been looking for you all over.
3. 7. Where is little Ann? Who is looking at the baby?

Ответ: 5. up, 6. for, 7. at