No one could have thought that the man _____ should have aone-million-pound note.[ ]

Once we discover a mistake, we should not ______ it but correct it immediately, to create better conditions for economic development.

____ bike is this—I think it’s Sally’s.

Some children want to challenge themselves by learning alanguage different from ______ their parents speak at home.

We hope the building project ______ will be completed as soon as possible because lots of citizens are complaining about the noises.