QUESTION: Fix punctuation: They will therefore in coming lives abolish all war and establish real lasting world peace on Earth
ANS: They will therefore, in coming lives, abolish all war and establish real lasting world peace on Earth.

QUESTION: Fix punctuation: Listen to a straightforward version of the 20 bars played slowly
ANS: Listen to a straightforward version of the 20 bars, played slowly.

QUESTION: Fix punctuation: In the afternoon mostly cloudy weather will prevail Morning temperatures will be around 10 C During the day they will reach a maximum of 17 C Low temperatures at night will be around 6C We have weak westerly winds
ANS: In the afternoon mostly cloudy weather will prevail. Morning temperatures will be around 10 C. During the day they will reach a maximum of 17 C. Low temperatures at night will be around 6C. We have weak westerly winds.

QUESTION: Fix punctuation: That this idea will not bear examination Mr Spencer himself shows even when as now he is more than willing to be understood as accepting it
ANS:
That this idea will not bear examination Mr. Spencer himself shows, even when, as now, he is more than willing to be understood as accepting it.