We may draw a conclusion that（）
A. latchkey children enjoy having such a large amount of time alone
B. latchkey children try to hide their feeling
C. latchkey children often watch TV with their parents
D. it’s difficult to find out how many latchkey children there are
只有在有商流需求的情况下，才能有发生物流的契机。( )
A. 对
B. 错
A.paysB.playsC.saysD.stays
Which of the following statements is NOT true（）
A. Latchkey children feel free at home.
B. Working parents often leave their children alone at home.
C. Many parents do not admit that they leave their children alone.
D. Latchkey children have to learn to take care of themselves.
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