Respuesta :
Yes, you should take the dog out for a walk every afternoon.
The introductory element of this sentence is "Yes". There must be a comma after the introductory elements for them to be punctuated correctly. The rest of the sentences should be punctuated this way as well. The next sentence should not have a comma after "Having". The introductory element in sentence three is "By daybreak". There should be a comma after "daybreak". The introductory element in sentence four is "In the morning" and "after we eat breakfast". These should be followed by commas.