After noticing the missing attachment, Idris ___ before noon.
promised his client resend the contract before noon
promised his client to resend the contract before noon
promised to resend the contract before noon✓الإجابة الصحيحة
promised that resend the contract to his client before noon
الشرح
Promised to resend the contract before noon follows the fixed promise-plus-to-infinitive pattern for the promised action. Promised his client to resend is not valid here because promise does not allow a personal object between the verb and that infinitive.