QUES: The rhythm is created by a rotating plate with holes through which a number of small bulbs illuminates activates photoelectric cells These cells are part of the oscillator circuit of the tubes and thus determines the speed of the rhythm

correct the punctuation.

CORRECTED: The rhythm is created by a rotating plate with holes through which a number of small bulbs illuminates (= activates) photo-electric cells. These cells are part of the oscillator circuit of the tubes - and thus determines the speed of the rhythm.

QUES: Overall the government will fully implement seven of the recommendations by June 30 2018 with a further four to be fully implemented by December 31 2018 and one by mid2019

correct the punctuation.

CORRECTED: Overall, the government will fully implement seven of the recommendations by June 30, 2018, with a further four to be fully implemented by December 31, 2018, and one by mid-2019.

QUES: Were often asked for lists of dos and donts on conducting business in different cultures

correct the punctuation.

CORRECTED:
We're often asked for lists of 'do's and don'ts' on conducting business in different cultures.