QUES: He then generalised his truth table method which was based on the two values true and false to a method which had an arbitrary finite number of truth values

correct the punctuation.

CORRECTED: He then generalised his truth table method, which was based on the two values "true" and "false", to a method which had an arbitrary finite number of truth values.

QUES: Fast Start is a potentially unwanted program that functions like browser addon It will add a new tab on your default browser and the tab will open each time you access the Internet At first glance it may seem that Fast Start tries to provide you with popular and important shortcuts but we strongly discourage you to keep using this application

correct the punctuation.

CORRECTED: Fast Start is a potentially unwanted program that functions like browser add-on. It will add a new tab on your default browser, and the tab will open each time you access the Internet. At first glance, it may seem that Fast Start tries to provide you with popular and important shortcuts, but we strongly discourage you to keep using this application.

QUES: The seedlings with promising results are then multiplied and grown by a few selected Dutch growers in order to produce high grade material for introduction of the varieties on a larger scale

correct the punctuation.

CORRECTED:
The seedlings with promising results are then multiplied and grown by a few selected Dutch growers in order to produce high grade material for introduction of the varieties on a larger scale.