Each sentencec has a mistake. Find it and correct it. 1)

Each sentencec has a mistake. Find it and correct it. 1) Nobody told me how to behave on the interview(a grammar mistake) 2) If you39;re good at drawing, you cold be architect(a grammar mistake) 3) It is the secretarys duty to answer the phone(a punctuation mistake) 4) She is respected for her efficiency at work(a spelling mistake) 5) I preffer to work slowly(a spelling mistake)