Here are the complete sentences using the given words:

1. Her mother bought a car last year.
2. He always misses Vienna; it is his hometown.
3. Sarah used to work with a young man for a very long time.
4. Have you ever been to Holland? Were there many beautiful tulips?
5. I will never forget the day I became the champion in the English speaking contest.
6. My mother made a cake yesterday; it was on the table.
7. Do you know the new teacher, Mrs. Grant? Have you talked to her?
8. Jenny is the most hard-working girl we know.
9. She is not interested in Chinese; she prefers to focus on her studies.
10. Mr. Smith is our Maths teacher; he often wears a suit and tie.