At
In
Used for unspecific times during a day, month, season, year: She always reads newspapers in the morning. Used to indicate a location or place: She looked me directly in the eyes. Used to indicate a shape, color, or size: This painting is mostly in blue. Used to express while doing something: In preparing for the final report, we revised the tone three times. Used to indicate a belief, opinion, interest, or feeling: I believe in the next life.
Used to point out specific time: I will meet you at 12 p.m.The bus will stop here at 5:45 p.m.
Used to indicate a place: There is a party at the club house. Used to indicate an email address: Please email me at abc@defg.com. Used to indicate an activity: He laughed at my acting.In
Used for unspecific times during a day, month, season, year: She always reads newspapers in the morning. Used to indicate a location or place: She looked me directly in the eyes. Used to indicate a shape, color, or size: This painting is mostly in blue. Used to express while doing something: In preparing for the final report, we revised the tone three times. Used to indicate a belief, opinion, interest, or feeling: I believe in the next life.
(Quelle: http://www.talkenglish.com/grammar/prepositions-on-at-in.aspx)
Glaub ich könnt dir auf irgend ne Weise weiterhelfen. :)
