QUES: digital inputs 12pcs connected to the switches push buttons

correct the punctuation.

CORRECTED: digital inputs (12pcs) connected to the switches (push buttons)

QUES: Smooth it neatly cover with clingfilm and put the cake in the refrigerator an hour or two

correct the punctuation.

CORRECTED: Smooth it neatly, cover with clingfilm and put the cake in the refrigerator an hour or two.

QUES: The debates this year were orchestrated by Helen Faulkner and Martin Krafft

correct the punctuation.

CORRECTED:
The debates this year were orchestrated by Helen Faulkner and Martin Krafft.