88. My old school friend comes to see me now and then. The underlined part means ____.
这部电影的主演是一位国际明星。 The actor ______ ______ the film is an international star.
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.