I have battled with my _________ over whether I should actually send this letter.

The success of her business made it difficult for her to carry out her       as wife and mother.

. To our ______, the result of the experiment is much better than we expected.

It was with great delight that I read in your February _____ the letter to the Editor written by Prof. Johnson.

Nowadays, few people form the habit of keeping the habit of candles in the house in case of  power      .