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4. Use at, in, to, for, on to complete the sentences.
Where is Sam? – He is ___ work.
Thanks ____ the work you’ve done so professionally.
The children are ____ bed and ready to go to sleep.
I arrived home late to find my dog lying happily ____ the bed.
The altar _____ the church was carved in the 17th century.
Has Victor gone _____ work?
Mary and Ann are _______ college. They have already left school.
Does Lizzy go to a kindergarten? – No, she is already _____ school.
Donald has been_____ prison for four years.
Colin works ______ a hospital.