Can she be considered as Resident alien despite not meeting the criteria for significant presence? Her W2 shows deductions for Social security tax.
Your exempt status would have been over sometime in June of 2018 and absent any treaty conditions ( what country? ), you would be resident alien for tax purposes sometime near the end of the year. Your wife's visa being a dependent visa , her immigration status would be the same as yours. Thus you can file a dual status filer ( TubroTax does not support this ) or as a resident for the whole year ( you have to request this -- both have to sign and date this ), implying file by mail and the use of form 1040 & TurboTax