I am (a)   person in the world today. (lucky)

Your answer is wrong, but it's (a)   than the other students' answers. (Correct)

Do you think Prague is (a)   than Amsterdam? (busy)

The river wasn't as (a)   I thought. (long)

Pandas are (a)   than penguins. (cute)

She was the (a)   girl at college. (popular)

I am (a)   at English than her. (good)

This is (a)   book in the whole store. (expensive)

The test in geography was easy, but the test in biology was (a)   (easy)