Read the following advertisement and mark the letter A, B, C, or D to indicate the correct option that best.fits each of the numbered blanks.

Dear Students,
We are happy to invite you to take part in our campaign to (30) ............... the local environment. This is a great opportunity to make a positive impact on our community while working together (31) ............ a team.
The campaign will include activities such as planting trees, cleaning up litter in parks, and learning practical ways to recycle and reduce waste.
Date: Next Saturday
Time: 8:00 a.m. to 12:00 p.m. Meeting Point: School Playground
Please wear comfortable clothes, bring gloves, and carry a reusable water bottle. Teachers and organizers will be there to guide (32)............
If you're interested, sign up with your class teacher by Friday. Let's make our community greener and healthier together!
Best regards,
The School Environment Club