Read and write. (按要求完成句子)

1. I watched TV last night. (就画线部分提问)

________________________________________________________________

2. He played football yesterday.(就画线部分提问)

________________________________________________________________

3. I did my homework. (改为一般疑问句)

________________________________________________________________

The school rules state that no child shall be allowed out of the school during the day, __________ accompanied by an adult.

A．once

B．when

C．if

D．unless