Помогите! нужно задать вопросы 4 спецальных и 1 общий:

1. Mary started work at 9 o'clock yesterday.

2. Jack finished his test 15 minutes aqo.

3. Alice read a book 3 days aqo.

4. Kete beqan to sinq at 6

1 when did marry start to work?

who did start to work?

what did marry start to do?

what time did marry start to work?

did marry start to work at 9 oclock yesterday

2when did jack finish his test

who did finish test?

what did do jack

how minutes did jack take to finish his test

did jack finish his test 15minutes ago

3when did alice read a book

what did do alice

who did read a book 3 days ago

how days did alice take to read a book

did alice read a book 3days ago

4what time did kete begin to sing

who did begin to sing

what did do kete

what did begin to do kete

did kete begin to sing at 6