-It's getting dark. I must be off now.-OK, please take care and ________ my best wishes to your family.
The news shocked the public, __________ to great concern about students' safety at school.
Have your ever been upset when __________ to yourself after your mobile phone battery runs out in the middle of a call?
The president of the university arrived yesterday, __________ the start of his short visit to China.
Tom was very angry about __________ to Mary's birthday party.
—Have you considered __________ your job as a doctor?—Yes. I like the job because a doctor can give help to more people.