单项选择题

What does "in-flight service" ( Line 1, Para, 5 ) mean

A．Service on the plane.
B．Flights within one country.
C．A new safety device.
D．Charge-free air service.
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单项选择题
What does the author mainly discuss in this passage
A．How to avoid car crash.
B．How to educate children properly.
C．How to design safer baby equipment.
D．How to properly secure children in the ear.
单项选择题
Which of the following is NOT among the improper ways mentioned in the passage
A．They don't know where best to place the child.
B．They don't have the safety equipment for the child.
C．They don't use the proper restraint for the kid's age and weight.
D．They don't install the safety seats properly.
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