QUES: All systems have pulsewidth modulated control valves on all evaporators

correct the punctuation.

CORRECTED: All systems have pulse-width modulated control valves on all evaporators.

QUES: At the moment there is no medical evidence that can confirm whether or not a chemical pregnancy will have any effect on any of your future pregnancy

correct the punctuation.

CORRECTED: At the moment, there is no medical evidence that can confirm whether or not a chemical pregnancy will have any effect on any of your future pregnancy.

QUES: Transfer from Paris Charles de Gaulle CDG airport to Strasbourg

correct the punctuation.

CORRECTED:
Transfer from Paris Charles de Gaulle (CDG) airport to Strasbourg