Chuyển câu chủ động sang câu bị động: People don't use this road very often

Chuyển câu chủ động sang câu bị động:
1) People don't use this road very often
2) He asked us many difficult questions
3) People have developed many different paper products
4) They must widen the road soon
5) she advised me to reuse milk bottles
6) My sister cleans these rooms every day
7) When does he usually do his homework?
8) Wastes from chemical factories have caused a lot of pollution
9) We sell tickets for all shows at the box office
10) They sell cold drinks here
giúp e vs ạ