As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.

It rained that day and ________ the basketball game was called off.

I think the talk given by the old scientist is ______ worth ______.

She paused _____ over the unfamiliar word but soon continued.

The value of a leader is something to be felt and experienced.         can it be put into words.