you can e-file your return and then once accepted use form 8453 to mail in forms 8832 and 8858. Turbotax supports preparation of the 8453 but it must be printed out and mailed with the checked forms/schedules attached. if you can't find it you can fill it out by hand and check the boxes. here's a link to the form.https://www.irs.gov/pub/irs-pdf/f8453.pdf
read the filing instuctions on the form becuase there is a deadline for submitting them once your return is accepted. Turbotax does support the preparation of 8332 but the form filed must be an original - signed by the custodial parent - so there's no way to e-file it
