题目内容
( )9. We need a ping-pong ball and two_.
A. ping-pong bat B. ping-pong bats
C. ping-pongs bat D. ping-pongs bats
B
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题目内容
( )9. We need a ping-pong ball and two_.
A. ping-pong bat B. ping-pong bats
C. ping-pongs bat D. ping-pongs bats
B