Hi,<br/><br/>1.'In/At the beginning of the month/book/movie.'<br/><br/>Are 'in' and 'at' both fine to use here? If so, what is the difference between 'in' and 'at' here?<br/><br/>2.'I thought he loved me; perhaps he did <a>in/at the beginning</a>.'<br/><br/>Could we use 'at' instead of 'in' here? What is the difference between 'in the beginning' and 'at the beginning' here?<br/><br/>Thank you very much.