1.  Four people put ( their  there they're) names on the list.

2.  (Their  There They're) isn't anything anyone can do about the problem.

3.  She asked that I sit (their  there  they're) until I felt better.

4.  No one knows when (their  there  they're) planning to sell the house.

5.  The lions did (their  there they're) tricks and returned to a large cage.

6.  What is (their  there they're) problem?

7.  Is anyone (their  there they're)?

8.  The actors told me that (their there  they're) planning to perform an extra show this Saturday.

9.  I wonder why (their there  they're) was no warning for the storm.

10. Hippies wore (their  there  they're) hair long.