Things are sold at their lowest prices at 4 am.

• A、True
  
  

• B、False
  
  

• C、Not given
  
  

The holiday season ends on Black Friday.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

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When Do Babies Learn To Talk

Many people thought babies were not able to learn things until they were five or six months old. But doctors now say babies begin learning on their first day of life. ________ A baby learns to get the best care by smiling to please her mother or other care givers. This is when babies learn to connect and "talk" with other people.

Language skills are believed to develop best in the first three years when the place is rich with sounds and sights. Scientists say children should hear the speech and language of other people again and again. ________

________By that time, a baby usually begins to make sounds. ________. By 18 months of age, most children can say between eight and ten words. By two years of age, most children are able to make simple sentences. ________ It is at these ages that children begin to understand the rules of language.

A: The first signs of communication happen during the first few days of life, when a baby learns

that crying will bring food and attention.

B: By the end of their first year, most children are able to say a few simple words, although they

may not understand the meaning of the words

C: Research shows that most children recognize the general sounds of their native language by

six months of age.

D: By ages three, four and five, the number of words a child can understand quickly increases.

E: A baby will smile if his or her mother does something the baby likes.

F: Different babies learn at different ages.