21. In face of         failure , it is the most  important  to keep

up         good state of mood .

   A. / ; a      B. a ; /           C. the ; /           D. /; the 

22.Most animals  have  little  connection  with animals of a different 

kind ,         they hunt them for food .

 A. if         B while            C. unless            D. as

23.£ß£ß£ß£ß Sunday, the students are at home.
A. Being        B. To   be        C. It is           D. It being

24.In front of the farmhouse ______.

A£®lay a poor man             B£®laid a poor man

   C£®a poor man lay             D£®did a poor man lie