You should be well aware _____the fact that most interviewers have rich experience because they are in ________position in their companies.
The aging population _____ each day .There must be some kind of interesting activity for the old.
When I ______to take part in the sport, I felt very surprised because I had never done this before.
I asked her ______ I should do to lose weight, and she told me to balance my diet.
— Do you know the old man ______ on the bench over there?— He is my grandfather.
If you don’t learn to think _____ you are young, you may never learn.