1. She finished her exercise.( change into present perfect tense) 2. Shyam wrote a letter.(change into simple present tense)
3. They go to the market.(change into present continuous tense)

She's been doing her exercise

Shyam writes a letter

They are going to the market

Explanation:

1 She has finished her exercise .

2 Shyam writes a letter .

3They are going to the market .

it can be many reasons such as they could want they're family to live and explore more two. might just want to be nice.

3.some say for the greater good or future.

4. they might want to have they're baby,kid,family explore more. people just sacrifice.

true fact:

someone is sacrificed everyday.

as for symbolic actions, the narrator's tearing down the wallpaper in an attempt to find the "woman" in the wallpaper represents her struggle to retain or regain her sanity.   the wallpaper has been part of her confinement and by her tearing it down, she is freeing herself from that confinement.