Ответ:

1. They didn't clean the house yesterday . ( отрицание)

Did they clean the house yesterday? ( вопрос )

What they do yesterday? (what)

Where they clean yesterday? (where)

When they clean the house? (when)

Who clean the house? (who)

2. He didn't decorate his room 2 days ago.( отрицание)

Did he decorate his room 2 days ago?(вопрос)

What he do 2 days ago?(what)

Where he decorate 2 days ago ?(where)

When he decorate his room?(when)

Who decorate the room 2 days ago?(who)

3. We didn't leave Moscow last week .( отрицание )

Did they leave Moscow last week?(вопрос )

What they do last week? (what )

When they leave Moscow? (when)

Who leave Moscow last week? (who)

4. She didn't read a book in the library .(отрицание)

Did she read a book in the library ?(вопрос )

What she do in the library? (what)

Where she read a book? (where)

When she read a book? (when)

Who read a book in the library? (who)