QUESTION: Fix punctuation: 8 and a congregation of people will surround you And because of this return on high
ANS: 8 and a congregation of people will surround you. And, because of this, return on high.

QUESTION: Fix punctuation: Access to homework collaborative projects and learning applications anytime and everywhere just by signing in
ANS: Access to homework, collaborative projects and learning applications, anytime and everywhere, just by signing in

QUESTION: Fix punctuation: Insight into Chinas health wealth and smoking ExSmokers
ANS: Insight into China's health, wealth and smoking | ExSmokers

QUESTION: Fix punctuation: Troldtekt expect to achieve certification at gold level in 2017 and to reach platinum level in some categories by 2022
ANS:
Troldtekt expect to achieve certification at gold level in 2017 and to reach platinum level in some categories by 2022.