In the activity, a few hours of “disability” gave us only a taste of the _______ both physically and mentally the disabled people should overcome.

 We must apply our minds to ________a solution.

 It is said that dogs will keep you ________ for as long as you want when you are feeling lonely.(江西高考)

My deskmate exercises regularly every day，so he is always________and studies efficiently.

The old man is ________ enough to contribute $ 10,000 to the disaster area damaged by the earthquake.