请帮我看看这个英语语法问题,Four people were killed and 12 others were injured when a car bomb being driven by a someone on a suicide mission exploded in an area called al-Utayfia.这句中 when a car bomb being driven b
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这句话的主语是a car bomb 谓语是exploded,所以being driven……后面引导的是定语从句,省略了引导词,如果补全,就是when a car bomb which (或that) was being driven by a someone on a suicide mission exploded in an area called al-Utayfia.
明白了吗?bomb which was being driven 省略之后就是 being driven