单项选择题

The purpose of this new Care Alert program is to save children’s （）

A．kidnappers
B．lives
C．toys
D．parents

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单项选择题

What will scientists do to make sure the poison works this time（）

A．They will try some of it themselves.
B．They will use a special kind of poison.
C．They will drain the lake first.
D．They will only put the poison in the wells.