While （）from his operation, David renewed an old interest in stockcar racing.
A、
was recovering
B、
recovering
C、
was recovered
D、
recovered
【正确答案】：B
【题目解析】：
在从手术中恢复过来的时候，大卫重新对赛车产生了浓厚的兴趣。David和recover之间为主动关系，故用recovering，排除CD；A项缺少主语；选B现在分词作伴随状语。
While （）from his operation, David renewed an old interest in stockcar racing.
While （）from his operation, David renewed an old interest in stockcar racing.
was recovering
recovering
was recovered
recovered
在从手术中恢复过来的时候，大卫重新对赛车产生了浓厚的兴趣。David和recover之间为主动关系，故用recovering，排除CD；A项缺少主语；选B现在分词作伴随状语。