His work _____ have been completed; otherwise, he wouldn’t be enjoying himself on the beach.
All their attempts to rescue the child from the burning building were _____. He died soon afterwards.
Seeing the picture ,she could resist _____.
--Could you do me a favor? --It depends on _____it is.
_____at what he said,she asked him why he said so to her.
Soon , Mary _____ the shock and became calm again.