Вставьте for\since.
1. American soldiers have been in Korea (since) 1950.
2. That shop has been closed (since) noon.
3. I've known her (since) 2008.
4. We have played soccer on Sunday morning (since) June 5.
5. She has been visiting this gallery (for) about 10 years.
6. We (have been) in Vienna (since) 2010.
