Answer: Sentence 1(tener + que + infinitive): El dia Lunes, Dan tiene que a barrer y trapear el piso.
Sentence 2 (que + infinitive): El dia Viernes, Dan tiene que sacar la basura y regar las plantas.
Translation:
Sentence 1: On Monday, Dan has to sweep and mop the floor.
Sentence 2: On Friday, Dan has to take out the trash and water the plants.