Mrs Black had such a wonderful time________she visited her friends in Sydney last year.
You have no idea how she finished the relay race _______ her foot wounded so much.
It may not be a great suggestion. But before _______ is put forward, we’ll make do with it.
Xi’an is really a fascinating city and we’ve decided to stay for two weeks.
His parents were teachers in that school, _______ lost their lives in order to save their students in the earthquake.
The streets here are crowded with cars, so I prefer________ here rather than_______ .