Question

артикль a an

Doctor and he works at …hospital which is near our house. 9. don’t forget to lock --- door when you leave. 10. terry sold his old bicycle so that he could buy …new one

Answer 1

Doctor and he works at a hospital which is near our house. 
9. don’t forget to lock a door when you leave. 10. terry sold his old bicycle so that he could buy a new one.Как-то так.