Choose the right sentence: 1. а. what has you been doing to the pet? б. what have you been doing to the pet? в. what have you being doing to the pet? 2. a. has it been raining for morning? б. have it been raining since morning? в. has it been raining since morning? 3. а. i hasn't been living here since 2011. б. i haven't being living here since 2011. в. i haven't been living here since 2011.