Answer:
water doesn't affect the titration as water does not react with the reagents or change the number of moles of acid added.
The correct word to fill the blank and complete the sentence is letter B, vuelven.
• Ellas vuelven a la casa muy tarde.
1. in Spain there is two main parades which appear Sunday & Tuesday in late July or June 2. visit Barcelona it has Gaudi buildings & Majorca it has mountain villages 3. Madrid it is a royal palace & a muesum
