Tom is in the office.和 Tom in the office 的区别

Tom is in the office.和 Tom in the office 的区别 Tom is the tallest of all in our office listen Tom is sing .that _____be Tom .he is in the office A. Tom hurried off in the d_______of the post office Tom is _____ the post office now Please hold the line,I will make sure( )Tom is in his office working in the office the meeting ( )when Tom( )to the office Tom was working in the office 这句话有没有缺少成分 at post office 和in the post office一样吗? Is Mr Green in the office? Is Mr wang in the office now?