For more information about Britain’s most successful football manager—Sir Alex Ferguson, ________ the book25 years at Manchester United.

____ boys in your school like playingfootball in their spare time, though others prefer basketball

The little baby has two ___.

It is believed _______ he has gone to Shanghai. The problem is ________ we can’t get in touch with him.

Food safety has become a growing concern. Had the offenders been punished severely enough, the situation________ different now.