twice,hedidntwanttotryagain.A．

_______twice, he didn't want to try again.

A．Failed

B．Failing

C．Having failed

D．To fail

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A．publishing

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C．publish

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B．To see；cry

C．Seeing；crying

D．Having seen；cry

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—________in the traffic for hours.

A．Stuck

B．Being stuck

C．To be stuck

D．Sticking

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A．based

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C．basing

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