Though my grandfather is quite old, he is still very __________ and he is enthusiastic about social activities.
It remains __________ whether the medicine will work on the human body.
Will you take part in the sports meeting __________ next month?
She is in a poor __________ of health, which worries her mother a lot.
The film was __________ a remote village in Western China.
The computer software is old, __________ very out of date.