单项选择题

The science teacher demonstrated the process of turning solid gold into liquid.

A．elaborated
B．showed
C．devised
D．simplified
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单项选择题
When we gave the children ice cream，they immediately ceased crying.
A．started
B．continued
C．stopped
D．resumed
单项选择题
After seven days in the desert, the explorer was relieved when he eventually found water.
A．finally
B．predictably
C．luckily
D．accidentally
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