问题补充:
more attention, the cabbages grown better.
A. Given; could have
B. Giving; could be
C. Given; could be
D. Giving; could have
答案:
(答案→)A. Given; could have
B. Giving; could be
C. Given; could be
D. Giving; could have
解析:考查过去分词做状语,the cabbages和give是被动关系,用过去分词做状语,Given more attention=if the cabbages had been given more attention,所以主句用虚拟语气,选A。