. None of them ______ my friends.
A.is |
B.are |
C.was |
D.has been |
. Every man, woman and child ______ some history, enough at least, to survive in the world.
A.knows |
B.know |
C.is known |
D.are known |
. The young ______ the vital forces in our society.
A.is |
B.has been |
C.are |
D.have been |
. Mathematics ______ the language of science.
A.is |
B.has been |
C.are |
D.have been |
. Early to bed and early to rise ______ a man healthy, happy and wise.
A.making |
B.to make |
C.make |
D.Makes |
. Three-fourths of the buildings ______.
A.was destroyed |
B.is destroyed |
C.were destroyed |
D.has been destroyed |