单项选择题


Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], [B], [C] and [D]. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 26 to 28 are based on the passage yon have just heard.

A.When they are with a baby-sitter.
B.When they are with another baby.
C.When they are with a strange adult.
D.When they are with an elderly person.