When I came in the room, he was engaged _______ making the model airplane.
举一反三
- He _____ a model plane when I came to see him. A: was making B: is making C: makes D: made
- He _______ a model plane when I came to see him.
- When I came to his room, I found my boy .
- I left when he came back.I______ ______ ______ he came back.
- When I entered the room, he pretended (read) ______ a book.