The study surveyed 500 families and found the main   problem people suffered was tiredness, followed by loneliness and anxiety.

The study surveyed 500 families and found the main_______ problem people suffered was tiredness, followed by loneliness and anxiety

1. A.
   domestic
2. B.
   public
3. C.
   psychological
4. D.
   biological

The study surveyed 500 families and found the main    problem people suffered was tiredness, followed by loneliness and anxiety.

       A．domestic   B．public       C．psychological D．biological

The study surveyed 500 families and found the main   problem people suffered was tiredness, followed by loneliness and anxiety.

The study surveyed 500 families and found the main　 ___problem people suffered was tiredness, followed by loneliness and anxiety.

　 A．domestic　　　　 B．public　　　　　 C．psychological 　 D．biological