I. Find the mistakes in these sentences and correct them : 1.i will be attend an artificial intelligence course at 9a.m tomorrow -.................................................................................................................... 2. my mother said it is impolite to leave without saying goodbye -...................................................................................................................... 3.she needs to improve her interview technology to get the job -.................................................................................................................. 4.my parents always say i had to become a doctor -.................................................................................................................. 5. she promised to hand in her assignment tomorrow -.................................................................................................................... II. 1. just taking vitamin tablets will not turn a/an ( healthy ) .................... diet into a good one 2. I'd been waiting for twenty minutes and i was getting (patient )....................... 3. A ( zoology ) ................... is a scientist who studies zoology