There is carpet in the middle of the room.

существует ковер в центре комнаты.

eсть ковер в центре комнаты.

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.

загадки:

1) what kind of clothes do lawyers wear? 2) what do you have if an ax falls on your car? 3) what is in the army and is corny? 4) what do you call a man when a marine sits on him? 5) an old fashioned bike wheel has 21 spokes. how many spaces are between the spokes - 20, 21, or 22? 6) where did pilgrims land when they arrived in america? 7) who succeeded the first president? 8) when is the best time to have lunch?

отгадки:

1) lawsuits2) an ax-i-dent (accident)3) a colonel (kernel).4) submarine.5) 21; draw it and count them.6) on their feet.7) the second one! 8) after breakfast!