we had to read all of these books.
many americans say they will have to work until they're 80.
［正］do we have to get up early tomorrow?
［誤］have we to get up early tomorrow?
［正］we don’t have to get up early tomorrow.
［誤］i haven't got to leave till seven.
［英］do we have to get up early every day?
［英］do we have to get up early tomorrow?
［英］have we to get up early tomorrow?
［英］we don’t have to get up early tomorrow.
［英］i haven't got to leave till seven. 