______ began our new lesson.
They spoke in ______ for fear that they should be heard.
It was ______ creative thinking that I took the course, not to get high marks in examinations.
The children enjoyed ______ round the newly polished floor.
It is a waste of time ______ him – he is determined to go his own way.
He began ______ in the early fifties, singing and ______ the guitar.