单项选择题

The children are ______ in a great deal of outdoor activities.

A．occupied
B．dealt
C．entered
D．engaged
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I need a pen ______ .
A．to write with
B．to write
C．writing
D．written
单项选择题
He didn't pay close ______ to the details.
A．attraction
B．attention
C．care
D．confusion
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