2)CHANGE ACTIVE INTO PASSIVE 1. The dentist pulled out my tooth.
2.Who delivered that parcel?
3. The waitress serves breakfast at 7 o'clock.
4. Many parents influence their children strongly.
5.They give the prize to students.
3)Complete the sentences with the missing words. The first letter of each word has been given.
1 Modern bicycles are sometimes made out of a___ because it is lighter than other metals.
2 P__was invented thousands of years ago as a material to write on.
3 Objects like cups, plates and vases are often made of c
4 Walls in the countryside are often built of s__
5 C_________ is a soft reddish-brown metal which is often used for making coins. 6 G_______ is an expensive metal which is often used to make wedding rings.
7 Many shoes, boots and bags are made of
8 S_________ is a type of metal that is used in tall buildings and bridges to make them stronger.​

2) Change Active into Passive

1. The dentist pulled out my tooth.
   Passive: My tooth was pulled out by the dentist.

2. Who delivered that parcel?
   Passive: By whom was that parcel delivered?

3. The waitress serves breakfast at 7 o'clock.
   Passive: Breakfast is served by the waitress at 7 o'clock.

4. Many parents influence their children strongly.
   Passive: Children are strongly influenced by many parents.

5. They give the prize to students.
   Passive: The prize is given to students.

3) Complete the sentences with the missing words

1. Modern bicycles are sometimes made out of a___ because it is lighter than other metals.
   Answer: aluminum (or aluminium in British English).

2. P__was invented thousands of years ago as a material to write on.
   Answer: Papyrus.

3. Objects like cups, plates and vases are often made of c___.
   Answer: ceramic.

4. Walls in the countryside are often built of s__.
   Answer: stone.

5. C_________ is a soft reddish-brown metal which is often used for making coins.
   Answer: Copper.

6. G_______ is an expensive metal which is often used to make wedding rings.
   Answer: Gold.

7. Many shoes, boots and bags are made of l___.
   Answer: leather.

8. S_________ is a type of metal that is used in tall buildings and bridges to make them stronger.
   Answer: Steel.