1. I am not sure who lives happier: nomads or city dwellers.

   • A. who
   • B. lives
   • C. happier
   • D. city dwellers

   Answer: B. lives
   Correction: "who lives" should be "who live" to agree with the plural subject "nomads or city dwellers".

2. A camel runs much more slowly as a horse.

   • A. A
   • B. runs
   • C. much
   • D. as

   Answer: D. as
   Correction: "as" should be "than" to make a correct comparison ("A camel runs much more slowly than a horse").

3. City people seem to react quickly to changes than in the countryside.

   • A. seem
   • B. quickly
   • C. than
   • D. the

   Answer: C. than
   Correction: "than" should be "more than" for correct comparative structure ("City people seem to react more quickly to changes than those in the countryside").

4. My father used to hate cat sea food, but now he likes doing it.

   • A. used
   • B. cat
   • C. but
   • D. doing

   Answer: B. cat
   Correction: "cat" should be "eating" for correct meaning ("used to hate eating seafood").

5. How many water do you drink everyday?

   • A. How many
   • B. do
   • C. drink
   • D. everyday

   Answer: A. How many
   Correction: "How many" should be "How much" because "water" is uncountable ("How much water do you drink every day?").

There are many reasons why it (1) ___ important to have a hobby. It will give you a pleasure (2) ___.

1. is
   Reason: The sentence needs the verb "is" to complete the clause ("it is important to have a hobby").

2. in
   Reason: The sentence needs the preposition "in" to complete the phrase ("a pleasure in").