Handclapping is a characteristic of Flamenco music. Flamenco is a folkloric music and dance tradition of regions of Southern Spain, famous for utilizing clapping through its rhythm.
Ayer Nora y yo comimos la cena en la cabaña.
Comimos is the plural form of comer and means to eat, Nora and I ate...
Claudio y yo llegábamos al hostal cuando el portero cerró la puerta.
Cerró is singular and in third person (he did), it means to close and is also in past. He closed the door.
Tú reservaste la habitación individual el mes pasado.
Reservaste is to book something, it’s in second person and in past. You booked the room...
Yo llegué en mi auto al hostal a las cinco de la tarde.
Llegué, first person and in past. It means to arrive somewhere. I arrived in my car...
El maestro dice (says) buenos días cuando entra en la sala de clase.
The correct answer is " es ".
I hope that this helps you !