They did not know the whereabouts of Chau's and Quoc's other sister and brother, Ha and Cuong, who had been sweeping the dining room floors when Frank entered the restaurant.
They did not know the whereabouts of Chau's. They did not know Quoc's other sister and brother, Ha and Cuong. Brother, Ha and Cuong had been sweeping the dining room floors. Frank entered the restaurant.