Answer: A) More intelligent.
Explanation for this question is being written.
Answer: B) Tastier
Answer: A) Nicer
Answer: B) More annoying.
Answer: B) More crowded.
Answer: C) Quicker, quickest.
Answer: D) More and more expensive.
Answer: A) Bigger
Answer: C) More relaxing.
Answer: C) More easily.
Answer: B) Drier
Answer: A) False
Answer: B) More curious.
Answer: C) Tall-taller-the tallest.
Answer: C) More popular.
Answer: A) More bravely.
Answer: A) More carefully.
Answer: A) More
Answer: C) More delicious.
Answer: A) Smaller
Answer: B) More soundly.
Answer: D) Larger and more comfortable.
Answer: A) Friendlier
Answer: A) Europe is not so large as Amman.
Answer: A) Happy $\rightarrow$ happier$\rightarrow$ happiest.
Answer: C) Wise-more wise-most wise.
Answer: A) I understand more than before today.
Answer: B) Nice
Answer: A) A
Answer: B) Is much more powerful than CO2.
Answer: A) Shorter
Answer: D) More intelligent.
Answer: C) Smarter
Answer: C) Dangerous
Answer: A) More painful than.
Answer: D) More interesting.
Answer: B) More athletic.
Answer: A) Drier
Answer: C) Superlative
Answer: A) -er, more, less.
Answer: A) True
Answer: A) More spacious than.
Answer: A) Colder than.
Answer: A) Larger than.
Answer: D) Younger
Answer: A) Quieter
Answer: A) The fewer.
Answer: A) More expensive.
Answer: D) Faster than.
Answer: A) Slower
Answer: A) Earlier
Answer: C) Most beautifully.
Answer: A) The same as.
Answer: D) Much earlier.
Answer: A) More sophisticated.
Answer: D) Hotter-the hottest.
Answer: A) More beautiful.
Answer: A) Most fun.
Answer: B) No
Answer: C) More exciting.