QUESTION: Fix punctuation: Audiofrequency electric amplifiers with only one channel excl those for civil aircraft of subheading 85184010 and telephonic or measurement amplifiers
ANS: Audio-frequency electric amplifiers, with only one channel (excl. those for civil aircraft of subheading 8518.40.10 and telephonic or measurement amplifiers)

QUESTION: Fix punctuation: The cornea is the transparent lining that covers the external front of the eyeball that is the iris and the pupil respectively the colored area that expands and contracts to allow light in and the lens that transmits the light and image to the brain the black center
ANS: The cornea is the transparent lining that covers the external front of the eyeball; that is, the iris and the pupil (respectively, the colored area that expands and contracts to allow light in, and the lens that transmits the light and image to the brain the black center).

QUESTION: Fix punctuation: Eg Consider an ATM enquiry system
ANS: Eg. Consider an ATM enquiry system:

QUESTION: Fix punctuation: Suunto Movestick for transmission of your training data from pulse watch to PCMac and into the Internet
ANS:
Suunto Movestick for transmission of your training data from pulse watch to PC/Mac and into the Internet