—Did you look up the time of trains to Shanghai?—Yes, the earliest train is ________ to leave at 5:30 am.
It was an agreement, ______ could not be changed.
The shopkeeper did not want to sell for ______ he thought was not enough.
Helen was much kinder to her youngest child than she was to the others, _____, of course, made the others unhappy.
The reason why he was late was _______ he had take a wrong bus.
The school ______ I visited last year was not the one _______ I once worked.