So confused need help i’ll give more points

Mi tía compro ese abrigo marron.

Dario vendió esa bicicleta anaranjada.

Ana y Tulio le regalaron a maría esas sandalias.

Yo conocí a aquel joven.

Ellas le entregaron el dinero a aquella cliente.

Tu encontraste estos libros en la cafeteria.

Nosotros buscamos aquellos calcetines a ti.

Valentina vio aquel libro en la librería.

Mi primo me invito a ese parque.

Todos mis hermanos usan aquellos pantalones cortos ene el partido.

Explanation:

answer: the answer is b. se quejan because it's in the plural form.

ancient india is often called the harappan civilization because one of the ancient cities was called harappa. harappa was just one of 1500 cities in the indus river valley. another well-known city is called mohenjo-daro. historians estimate ancient india to be the biggest of all four early civilizations.