According to the reading, other scientists believed that animals ________.
A.could only communicate in nature
B.had the ability to communicate with pet owners
C.could communicate if they were programmed to do so
D.didn't have the ability to think

The word "them" in paragraph 2 refers to ________.
A.animals
B.scientists
C.pet owners
D.things

Which of the following is NOT true about Irene's parrot Alex?
A.He learned to use almost 150 English words.
B.He could label a number of objects.
C.He was able to have complicated conversations.
D.He could understand how one object was different from others.

A.meat
B.dream
C.bread
D.each

_________(29)
A.size
B.number
C.deal
D.digit

_________(30)
A.point
B.indicate
C.display
D.exhibit

Ted was worried because_________.
A.he received a letter
B.he went to the police station yesterday
C.the police would catch him
D.he didn’t know why the police wanted him

The police who talked to Ted was_________.
A.pleasant
B.worried
C.surprised
D.small

When was Ted’s bicycle found?
A.Last Tuesday
B.Five years ago
C.Twenty years ago
D.Yesterday

The nurse asked Mrs. Green_________.
A.how was old her son
B.how old son was
C.how old her son is
D.how old her son was