QUESTION: Fix punctuation: The fastest and easiest way to open your VDT file is to doubleclick it
ANS: The fastest and easiest way to open your VDT file is to double-click it.

QUESTION: Fix punctuation: When you delete any iWork file then only its file name address pointers and related information is usually removed from file system and the actual iWork file contents still remain on Mac system storage space
ANS: When you delete any iWork file, then only its file name, address pointers and related information is usually removed from file system; and the actual iWork file contents still remain on Mac system storage space.

QUESTION: Fix punctuation: When you are breastfeeding the body releases the hormone Oxytocin Oxytocin in the lactating mothers body causes contraction of the milk ducts and triggers severe headache
ANS: When you are breastfeeding, the body releases the hormone, Oxytocin. Oxytocin in the lactating mother's body causes contraction of the milk ducts and triggers severe headache.

QUESTION: Fix punctuation: As the clear red yellow and green pigments are based on lead chromates and leadmolybdenum chromates and also contain lead an XRF screening showing a lead content of more than 01 will be sufficient to determine whether a plastic part complies with the RoHS requirements
ANS:
As the clear red, yellow and green pigments are based on lead chromates and lead-molybdenum chromates and also contain lead, an XRF screening showing a lead content of more than 0.1% will be sufficient to determine whether a plastic part complies with the RoHS requirements.