QUESTION: Fix punctuation: There is an abundance of fish in the Cesma and Plavnica rivers as well as in the fishponds Siscani Narta etc
ANS: There is an abundance of fish in the Cesma and Plavnica rivers, as well as in the fishponds Siscani, Narta, etc.
QUES: Measuring 5 mm or 25 mm this coverstitch has the precise width most often used in readytowear clothing so garments will look professional

correct the punctuation.

CORRECTED: Measuring 5 mm or 2.5 mm, this coverstitch has the precise width most often used in ready-to-wear clothing, so garments will look professional.
Question: Danish lessons Archive RussiskDansk Forum
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Answer: Danish lessons [Archive] - Russisk-Dansk Forum
This dwarf planet is called Ceres pronounced seerees and you can see a drawing of it above

Can you repeat this sentence, but add in punctuation?
This dwarf planet is called Ceres (pronounced 'see-rees') and you can see a drawing of it above.
input: This aircraft type is also environmentally friendly because of its fuel economy and much lower CO2 emissions than comparable jets
fixed: This aircraft type is also environmentally friendly because of its fuel economy and much lower CO2 emissions than comparable jets.
If a car seat is being used onboard for a child over 2 years then the booking can be made on our website but you will need to contact us to add the car seat details and allocate a suitable seat onboard

Can you repeat this sentence, but add in punctuation?
If a car seat is being used onboard for a child over 2 years then the booking can be made on our website, but you will need to contact us to add the car seat details and allocate a suitable seat onboard.