He is only too ready to help others, seldom, ____, refusing them when they turn to him.

________ it is to have a swim in a pool on a hot summer.

Perhaps the day will come ____ people willbe able to breathe clean air in cities

l ______ truth, he is at ______ loss whatto do currently

238. It is beyond my _______ to decidewhether we should begin our meeting or not.