Вставьте в пропуски подходящее прилагательное или наречие в правильной форме.

1. Your record is (bad) … than mine. Next time you (good) … be (fast) ….
2. I bet you’ll be very glad to visit (hot) … sauna in our town. You can’t find (hot) … one here. Follow me!
3. – Is it a bus station?
– I’m afraid, it’s not. According to my map, it is 100 meters (far) ….
4. To tell the truth, (warm) … the weather, (good) … I feel. That’s why today I look (health) … and (fresh) …, than yesterday.
5. What is (easy) … subject for you in school? I guess, it’s Math, because you are (good) … at it in the whole school and nobody can catch up with you!
6. Baseball is (popular) … than tennis in the USA. At the same time basketball seems to be (to excite) … and not so boring than baseball. However there are a lot of fans of each sport there, and besides that, every person has his or her own opinion on this matter.
7. Please pay attention to the traffic signs while driving your car! Some roads in our neighborhood are (difficult) … for rookies than in the center of the city as they are (wide) … and overcrowded with cars or pedestrians. This makes them (dangerous) … ones in the whole city!
8. Sam’s idea sounds (interesting) …, than the previous one, but I like Carol’s idea even (good) …. Let’s take it into account, because I doubt if we can find (suitable) … one.
9. You must drive slower in built up areas. The (fast) … you drive in the city, the (probably) … it is that you will have an accident.
10. Please, speak (clear) …, because I (hard) … understand what you are talking about. There is no need of speaking (fluent) … than an average person is able to understand.

Your record is worse than mine. Next time you had better be faster.
Worse — сравнительная степень от bad.
Had better — устойчивое выражение «тебе лучше».
Faster — сравнительная степень от fast.

I bet you’ll be very glad to visit the hottest sauna in our town. You can’t find a hotter one here. Follow me!
The hottest — превосходная степень, поскольку речь идёт о самой жаркой сауне в городе.
Hotter — сравнительная степень: «более жаркую».

– Is it a bus station? – I’m afraid it’s not. According to my map, it is 100 meters farther.
Farther употребляется, когда речь идёт о физическом расстоянии. Форма further также встречается, но чаще имеет значение «дальнейший», «дополнительный».

To tell the truth, the warmer the weather, the better I feel. That’s why today I look healthier and fresher than yesterday.
Здесь используется конструкция the + сравнительная степень, the + сравнительная степень: «чем теплее погода, тем лучше я себя чувствую».
После глагола look употребляются прилагательные: healthier, fresher.

What is the easiest subject for you at school? I guess it’s Math, because you are the best at it in the whole school and nobody can catch up with you!
The easiest — превосходная степень от easy.
The best — превосходная степень от good.

Baseball is more popular than tennis in the USA. At the same time, basketball seems to be more exciting and not as boring as baseball.
Многосложные прилагательные образуют сравнительную степень с помощью more: more popular, more exciting.
Конструкция должна быть not as boring as, а не not so boring than.

Please pay attention to the traffic signs while driving your car! Some roads in our neighborhood are more difficult for rookies than those in the center of the city, as they are less wide and overcrowded with cars or pedestrians. This makes them the most dangerous ones in the whole city!
More difficult — сравнительная степень многосложного прилагательного.
Less wide — «менее широкие», то есть более узкие. Можно также сказать narrower, но это форма от другого прилагательного — narrow.
The most dangerous — превосходная степень.

Sam’s idea sounds more interesting than the previous one, but I like Carol’s idea even better. Let’s take it into account, because I doubt if we can find a more suitable one.
More interesting и more suitable — сравнительные формы многосложных прилагательных.
Better — сравнительная степень от well/good. Слово even усиливает сравнение: «ещё лучше».

You must drive slower in built-up areas. The faster you drive in the city, the more probable it is that you will have an accident.
Используется конструкция «чем…, тем…»: the faster …, the more probable ….
После it is требуется прилагательное probable, а не наречие probably.

Please speak more clearly, because I can hardly understand what you are talking about. There is no need to speak more fluently than an average person is able to understand.
More clearly и more fluently — сравнительные степени наречий.
Hardly означает «едва», «почти не»: I can hardly understand — «я почти не понимаю». Наречие hard означало бы «усердно» или «сильно» и здесь не подходит.