Add punctuation: Hi my name is PiersClit and I am 20 years
A: Hi, my name is PiersClit and I am 20 years.
QUESTION: Fix punctuation: Model No but I love taking pictures
ANS: Model? No, but I love taking pictures.
QUES: In his book The Threat David M Jacobs PhD offers a few ideas based on his own deep investigation of the subject

correct the punctuation.

CORRECTED: In his book The Threat, David M. Jacobs., Ph.D., offers a few ideas based on his own deep investigation of the subject.
Question: The building was square or rectangular and was up on some kind of legs maybe 15 to 20 feet off of the bottom of the lake I will describe the positions in reference to my right and left
--
Answer: The building was square or rectangular and was up on some kind of legs maybe 15 to 20 feet off of the bottom of the lake. I will describe the positions in reference to my right and left.
sscoredll device cant workNo sound Actually in most cases device problem is because of sys files

Can you repeat this sentence, but add in punctuation?
sscore.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.
QUESTION: Fix punctuation: Check rates and availability for Qianmen Courtyard Hotel Then proceed to booking
ANS:
Check rates and availability for Qianmen Courtyard Hotel. Then proceed to booking.