单项选择题

What, in Dr. Richard Perelman's opinion, is not a good idea to take care of children

A．Leave them to a baby-sitter.
B．Leave them in a day-care center.
C．Leave them with other children with a care of an adult.
D．Leave them in a kindergarten.

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热门试题

单项选择题According to the study, an infant child can form friendship as young as______.

A．six months old.
B．one year old.
C．eighteen months old.
D．two years old.

单项选择题What did NOT the teacher suggest the students to review

A．The textbook.
B．The calls notes.
C．The mid-term questions.
D．The reference books.