QUESTION: Fix punctuation: On the other hand we the grassroots all over the world have managed to put human rights on the agenda ahead of the Olympics where most of the articles have had a focus critical to China
ANS: On the other hand, we, the grassroots all over the world have managed to put human rights on the agenda ahead of the Olympics, where most of the articles have had a focus critical to China.

QUESTION: Fix punctuation: Love is important in our short life on this earth
ANS: Love is important in our short life on this earth.

QUESTION: Fix punctuation: Each page must be numbered and placed in a transparent cover
ANS: Each page must be numbered and placed in a transparent cover.

QUESTION: Fix punctuation: At these plants there is time to wait for the soil to be cleaned to an acceptable level Furthermore the end use of the soil after treatment can be evaluated according to circumstances
ANS:
At these plants, there is time to wait for the soil to be cleaned to an acceptable level. Furthermore, the end use of the soil after treatment can be evaluated according to circumstances.