They are ________ for new skills so that they can be qualified for the new jobs.
I am concerned ____ it that I can’t concentrate ____ my work because of headache.
_____of danger in the street at night, she had to go home, with a friend_____ her.
—Jack is very clever and he studies hard as well.—It’s no ______ he always comes out first in the exams.
Autumn coming, down ________.
The general at last got a chance to visit the village, ____ he used to fight, _____ he had been dreaming of for years.