In Australia, surfing is a popular sport among young people ____ they can seek excitement and adventure.
The plan to be carried out next month needs________among the members of the labor union before________.
It is impolite to sit there with your feet _____ at somebody.
Sam________some knowledge of the computer just by watching others working on it.
If the babysitter cannot come tomorrow,do you mind________alone at home,doing his homework?
Now that you’re grown up,you’d better spend your time just on the things you find_______.