... isknown that the habits of their mother tongue affect their acquisition of the second language.They use their previous experience of their first language as a means of organising the L2.They "tend ... includes some of the following general features: indication that an error was committed, identification of the type of error, location of the error, mention of who made the error, selection of a remedy,provision ... of test one, the students overgeneralize the structure " ;the piano and the organ"into the new context of item 7. With that way of thinking, " The piano, as well as the organ"...