QUES: As the highestranking Chinese official ever to present at the summit Wens speech delivered a clear message to the world about what China plans to do to secure its future development

correct the punctuation.

CORRECTED: As the highest-ranking Chinese official ever to present at the summit, Wen's speech delivered a clear message to the world about what China plans to do to secure its future development.

QUES: That would mean that people not in a state of grace should forget about praying

correct the punctuation.

CORRECTED: That would mean that people not in a state of grace should forget about praying.

QUES: The 2012 extremes in melt air temperature melt season duration runoff and albedo are shown to be unparalleled in the period with satellite and in situ observations on an icesheetwide scale

correct the punctuation.

CORRECTED:
The 2012 extremes in melt, air temperature, melt season duration, runoff, and albedo are shown to be unparalleled in the period with satellite and in situ observations on an ice-sheet-wide scale.