It’s important for us to use a word or phrase according to the            in language studies.

The coach’s great _____ is to make all the players into a united team and win the final success.

The lady in red immediately became the _____ of attention when she entered the hall. 

I keep medicines on the top shelf, out of the children’s________.

It is the       in this country to go out and pick flowers on the first day of the spring．