1. She is going to introduce some _______ wonders of the world tomorrow.
   B. natural

   Explanation: "Natural" is the correct adjective form to describe the wonders of the world.

2. _______ is a large thick bag for sleeping in, especially when you are camping.
   A. A sleeping bag

   Explanation: A sleeping bag is the correct term for the item described.

3. I’m just going to _______ to buy some medicines and bandage.
   B. chemist’s

   Explanation: "Chemist’s" is the place where you buy medicines and bandages.

4. My close friend, Mai, has a _______ face and _______ hair.
   C. round - black

   Explanation: "Round" and "black" are typical adjectives to describe someone's face and hair.

5. Can you name some famous tourist _______ in Vietnam?
   A. attractions

   Explanation: "Attractions" refers to popular tourist spots or places of interest.

6. Tet is coming. We _______ clean and decorate our house.
   A. should

   Explanation: "Should" is the correct modal verb to express a recommendation or suggestion.

7. Mai is a _______ girl. She can talk with her friends all day without feeling bored.
   A. talkative

   Explanation: "Talkative" describes someone who talks a lot.

8. Don’t buy _______ bread at the shop. There’s a lot of in the kitchen.
   A. any

Explanation: "Any" is used in negative sentences or questions when referring to an unspecified quantity.

1. Health is _______ money.
   D. more important than

Explanation: The correct comparative structure is "more important than."

1. My house is _______ the bookstore and the bakery.
   D. between

Explanation: "Between" is used to indicate something is in the middle of two places.

1. Mark’s house has room for five people, but Sarah’s has room for only four. Mark’s house is _______ than Sarah’s.
   D. bigger

Explanation: "Bigger" is the correct comparative form of "big."

1. Keep silent! The baby _______ in the bedroom.
   C. is sleeping

Explanation: "Is sleeping" is the correct present continuous form to describe an action happening at the moment.

1. There are a number of interesting _______ at my party.
   A. people