Задать вопрос к двум предложениям вопросы : 1. we saw him yesterday вопрос к yesterday 2.his sister live in yekaterinburg ten years ago вопрос к yekaterinburg и без приколов! зарание большое : )

1. When did we see him?

Второе предложение, по-видимому, с ошибкой. Если не live, a lived, тогда:

2. Where did his sister live ten years ago?

1. We saw him  yesterday.

When did we see him?

2. His sister lived in Yekaterinburg ten years ago.

Where did his sister live five years ago?