单项选择题


A．preparing
B．prepare
C．prepared
D．prepares
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单项选择题
Everything is decided in a family ______.
A．by the couple
B．with the help of their parents
C．by brothers and sisters
D．with the help of aunts and uncles
单项选择题
In the following places, where can we not find the LEDs
A．Digital clock.
B．Traffic lights.
C．Swimming pools.
D．Cassette players' speakers.
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