摘要： The room quiet.
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The room _____very quiet. The students are playing outside.
[ ]
A. sound
B. sounds
C. sounded
D. sounding
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B. sounds
C. sounded
D. sounding
The sign_____is often found in a reading-room or a library.
|
A．NO PHOTOS |
B．KEEP QUIET |
|
C．THIS SIDE UP |
D．OPEN |
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