Составить из данных предложений 2 СПЕЦИАЛЬНЫХ во и 3 АЛЬТЕРНАТИВНЫХ.

Two Special questions: (два спец.)

1) Who takes the responsibility for the ship and crew?

2) At what age did I help my father repair the engine?

Three Alternative questions. (два альтернативных)

1) Should the radio operator need to know his job well or he don't?

2) Is this equipment new or old?

3) Did we buy this book yesterday or last week?