How foolish I was! _______ you have realised that, stop blaming yourself.
The mother often tells her son to be a good boy, warning him to ______ trouble.
I can ______ some noise while I’m studying, but I can’t stand very loud noise.
John has put on so much weight recently that his mother has to ______ all his trousers to his measure.
The government has _______ the parents to work with teachers in the education of their children.
The plan ___ just because people were unwilling to co-operate(合作)。