But These minor two-letter prepositions seem to make confusion. Here are some guidelines that may help you understand when to use in, on, and at in the sentence. （表达或书写的方式）用，以 Cheques ought to be prepared in ink. 支票要用墨水笔填写。 (village) lifestyle. More than simply an outline of a accumulating of makeshift houses http://139.59.255.83/