乒乓球比赛中，副裁判员发现发球员明显没有按照合法发球的规定发球，这时副裁应该怎么办:
A. 判发球员失1分
B. 警告发球员，不判分
C. 不采取行动，因为主裁才有权判罚。
D. 以上判罚都不对。
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_______ they ________ (sweep) the floor on Sunday? No, they _____.
Gao Shan ________ (put) the book on his head a moment ago.
I want to ______ apples. But my dad _______ all of them last month. (pick)
______ you _______ (visit) your relatives last Spring Festival?
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