QUES: This tells us that the last reviews come from real guests like you

correct the punctuation.

CORRECTED: This tells us that the last reviews come from real guests, like you.

QUES: A largescale solar cell system will be constructed on the surface of the terminal building which can supply power to the office domicile and reduce energy consumption as well as contribute to reducing CO2 emissions

correct the punctuation.

CORRECTED: A large-scale solar cell system will be constructed on the surface of the terminal building, which can supply power to the office domicile and reduce energy consumption as well as contribute to reducing CO2 emissions.

QUES: This is done to ensure that what our product says it is it really is

correct the punctuation.

CORRECTED:
This is done to ensure that what our product says it is, it really is.