QUESTION: Fix punctuation: The three models of the Fluke 170 Series True RMS digital multimeters are the benchmarks for general purpose multimeters
ANS: The three models of the Fluke 170 Series True RMS digital multimeters are the benchmarks for general purpose multimeters.

QUESTION: Fix punctuation: The pack contains image  pattern  yarn and a needle
ANS: The pack contains image , pattern , yarn and a needle.

QUESTION: Fix punctuation: De Soto pushed the expedition onward building bridges where necessary and fording rivers
ANS: De Soto pushed the expedition onward, building bridges where necessary and fording rivers.

QUESTION: Fix punctuation: So every time you go online and youre navigating the website theres a trail of breadcrumbs that every customer leaves behind regarding what have they browsed what have they put in their cart and not bought how much time have they spent looking at a particular item
ANS:
So every time you go online and you’re navigating the website there’s a trail of breadcrumbs that every customer leaves behind regarding what have they browsed, what have they put in their cart and not bought, how much time have they spent looking at a particular item.