Deductions & credits

Thanks for everyone's help thus far.  I googled the form for the "Qualified Dividends and Capital Gain Tax Worksheet- Line 11a" and my completed return in TurboTax seems to suggest that since both lines 18 & 19 are blank that this worksheet must be filled out.  Do you think that the questions TurboTax asked me automatically completed & populated this form?   I just want to be sure this is correct & not too good to be true (as far as not owing anything), since I don't recall seeing questions in this section about filing single/married/separately, ect.