How long does it usually take you to do your homework? which subject takes the longest? do you think it’s necessary to plan one’s day or not, and why? ответьте на вопросы, .

It usually takes me up to three hours to do my homework (или to get done with my homework). math takes the longest time. i think it's necessary to plan your day because this way it will be easier to get done with everything you need on time.

jess hasn't got a big cockerel.

a fox isn't black.

1. i exercise regularly in summer but more to do in winter. 2. she usually walks slowly but now she is walking even   faster . 3. nina speaks loudly but mary speaks even   louder . 4. he runs fast, than other boys. 5. i don’t sleep enough, less   than 8 hours. 6. he behaves badly, than other boys. 7. i smile often, more than my sister. 8. peter lives far from school, but ann lives closer .

я думаю, что  4 и в 6 предложениях ничего изменять не надо. может я ошибаюсь.