单项选择题

A．Recycling trash.
B．Saving our planet.
C．Using water sparingly.
D．Cleaning the groun
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单项选择题
A．Paul is the right man for help.B．Paul offered help to the man.C．Paul doesn’t know much about computer.D．Paul was the last one who used the computer.
A．Paul is the right man for help.
B．Paul offered help to the man.
C．Paul doesn’t know much about computer.
D．Paul was the last one who used the computer.
单项选择题
A．Laborious.B．Conscious.C．Appropriate.D．Effortless.
A．Laborious.
B．Conscious.
C．Appropriate.
D．Effortless.
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