单项选择题

Don't be afraid of asking for help （）it is needed.

A．unless
B．since
C．although
D．when

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单项选择题
—Could you do me a favor and take the box up to the sixth floor —（）.

A．With pleasure
B．My pleasure
C．No wonder
D．No comment
单项选择题
—Is （）here — No, Bob is ill at home.

A．anybody
B．somebody
C．everybody
D．nobody
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