Digging the garden with a spade is a very ()task. I am exhausted after such two-hour's work.

单项选择题If you plant two apple trees in one square yard of land, and the trees' productivity () decline.

A. is bound to
B. is determined to
C. is unlikely to
D. is related to

单项选择题Some people () in part the defeat of the revolution in France and Germany to the English diplomacy, do you agree

A. contributed
B. attributed
C. distributed
D. owned