Occasions are quite rare ________ I have time to spend a day with my kids.
We hurried to the station, _________ the train was gone.
------They are said to be quarrelling about our new language lab. ------ I don’t care. It has __________ to do with me.
The lock in my bag _______me of not locking my door .
If man can’t live _______ harmony _______ nature, the balance will be destroyed.
-----where has his brother been ? ------No one knows. He has returned home safely but his missing made the police _____ .