3. The Great Wall,the biggest man-made object was      (build) to protect the country and the people.

2. The tea produced a pleasant smell after it was      (boil) in hot water for some time.

1. In ancient China, sky lanterns were s       out to ask for help when people in trouble.

5.      (网站)are used for offering online service.

4. The Internet is used for____________ (communicate) and      (search) useful information.

3. Shoes with special       (鞋跟)are used for      ( change) the       (款式)of the

shoes. They can make the shoes go from casual to dressy.

2. Hot ice-cream scoop is used for____________ (serve) really cold ice-cream.

1. Shoes with lights are used for s          in the dark.

7. It is believed that the first ice-cream was       (introduce) to Italyby Marco Polo in the  1500's .

6. The jeans were first      (make) by a young man called Levi's in America in 1853.