26. –Look! How terrible his situation is! Could you help him? --I’d like to help, but ____ I can’t.
---The window is dirty. ----I know. It ______ for weeks.
He used _______ on the right in China, but he soon got used ______ on the left in England.
The villagers went out to the mountain __________ the missing child.
The room _______ very useful when we had visitors.
I doubt _______ he will win or not.