Question

Question was provided via image upload.

Explanation:

1. For the first blank: Li Mei thinks the meeting is on Friday, but Sharifa contradicts this, so Li Mei is uncertain about the day. "Unsure" fits this context.
2. For the second blank: Sharifa states she is positive the meeting was changed to Thursday, so she asserts or confirms this fact. "Says" (or "confirms" is also suitable, but "says" directly reflects her verbal statement) matches her clear claim. Note: There is a small typo in the original sentence ("an Thursday" should be "a Thursday").

Answer:

Li Mei is unsure about which day the meeting is. She believes it's on Friday, but Sharifa says that it's a Thursday.