Составьте 5 вопросов к предложению по темам:
1 general questions
2 special questions
3 alternative questions
4 tag questions
5 subject questions

предложение:
they bough at new house last year

как я понял в вашем предложении ошибка. наверное вы хотели написать: they bought a new house last year?

вот пять типов вопросов с данным предложением:

1. general - do they bought a new house last year?

2. special - when are they bought a new house?

3. alternative - they bought a new house last year or last month?

4. tag - they bought a new house last year, didn't they?

5. subject - who bought a new house last year?