Determine whether the following sentences are correct or incorrect and error correction 1. Scientists have made significant achievements in medicine.

Determine whether the following sentences are correct or incorrect and error correction
1. Scientists have made significant achievements in medicine.
2. The storm uproots the trees, so we cannot travel this road now.
3. Our family has lived in this house when I was five years old.
4. People use vaccination for a long time to prevent certain diseases.
5. I have seen Julia three times this week. What a coincidence!
6. I feel so relieved now. My father has found the key I lost this morning.
7. I have had this laptop when I was a first year student.