[6D] Exercise 4

4. The boy admitted .......... his homework last night.

5. The man had to ask a policeman for help after .......... in the wrong direction for two hours.

1. Google is famous for .......... fantastic working conditions for its employees.

2. .......... on time is one of our school requirements.

3. .......... at the beautiful works of art for hours, we left the exhibition with satisfaction.