根据提示填空（每空一词）
玛丽正在画画时，格林先生进来了。
Mary was drawing a picture ____ Mr. Green ____ in.

根据提示填空（每空一词）
昨天下雨时他们正在干什么？
What ____ they ____ while it ____ ____yesterday?

根据提示填空（每空一词）
昨天九点的时候我叔叔正在房间里看书。
My uncle ____ ____ books in the room at nine o’clock yesterday.

根据提示填空（每空一词）
—What were you doing when we were playing basketball yesterday afternoon?
—I ____ ____ (clean) the classroom.

The twins didn’t go to the theatre. They        the light music all night.

根据提示填空（每空一词）
—Was Kate at the party last night?
—Yes, she        a really nice dress.

What         you         when the teacher came in?

Sally took a photo of her friends while they         computer games.

Tom rushed into the house        his mother was cooking.

—Has David finished his project yet?
—I guess not. He         on it at lunch time. Do you want me to confirm(确认) it?