Tired _______ he was , he decided not to trouble her

Nowadays good things _____ to save wildlife in Tibet and many other places with the joint efforts of the government and society.

Compared with his sister, Jerry is even more ______ to, and more easily troubled by, emotional and relationship problems.

Sorry, I can’t workout this problem. —Try again,please. It’s only ______ difficult.

The old men in hospital are_____________________.