听下面一段独白,回答以下小题。
(1)
Who is Richard?
A . a baby-sitter.
B . A researcher.
C . A children's writer.
(2)
With whom do babies feel the most comfortable?
A . Strange adults.
B . Baby-sitters.
C . Other babies.
(3)
How do babies react to unfamiliar babies?
A . They reach out.
B . They show fear.
C . They start to cry.
(4)
What may the study lead to?
A . Much more parenting time with babies.
B . An increase in family-based day care centers.
C . A greater demand for experienced babysitters.
答案: B
C
A
B