How many years of her life did Martha Berry devote to working for the mountain children? ____.
A.40 years
B.36 years
C.29 years
D.76 years
正确答案是D
How many years of her life did Martha Berry devote to working for the mountain children? ____.
A.40 years
B.36 years
C.29 years
D.76 years
正确答案是D