问题描述：
.--Has Lucy mended her radio ____?--- No,she aren't A just now B yet C ago D after
.--Has Lucy mended her radio ____?--- No,she aren't A just now B yet C ago D after 是she aren't吗?
.--Has Lucy mended her radio ____?--- No,she aren't A just now B yet C ago D after 是she aren't吗?
问题解答：
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