Что вставить? megan used (think) that a library was a place where books were (buy) and (sell); now she knows that a library is a place for (lend) and (borrow) books. а) think, bought and sold, lending, borrowing; б) to think, bot and sold, lending, borrowing; в) think, bout and sold, lending, borowing; г) to think, bought and sold, lending, borrowing.