Câu bị động.
 1.    Miss Blake is one of the ____________ from Friends of the Earth.(represent)
    2.    We should ___________ plastic bags instead of throwing them away. (use)
    3.    Attractive ____________ can help to sell products. (package)
    4.    Reduce means not buying products which are ____________ . (overpackage)
    5.    Share your _____________ story with our readers! (recycle)
    6.    Farmers in our village often  ____________ their field with compost. (fertilizer) 
    7.    Are you interested in ___________ the environment? (protect)
    8.    There are many ____________ made from recycled things. (produce)
    9.    Waste paper can be ____________ after being recycling. (use)
    10.    We can protect the environment by ____________ air pollution. (reduction)
Chuyển từ câu chủ động sang bị động
    1.    They clean these rooms every morning.
 These rooms     
    2.    People play football all over the world.
    →    Football     

    3.    The mailman collects the letters every 6 am.
  The letters     
    4.    A. G. Bell invented the telephone in 1876.
  The telephone     
    5.    He wrote that book last year.
 That book     
    6.    Mr. Brown took the children to the zoo last Sunday.
 The children         
    7.    People use milk to make butter and cheese.
  Milk     
    8.    They plant rice in those fields
  Rice     
    9.    They make paper from wood.
  Paper     
    10.    We sent these postcards to our friends by air.
  These postcards     
GIÚP VỚI MN ƠI