A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tend not to bother to recover a perishable treat if stored long enough to have rotted.
答案是D
答案是D
搜了讨论,好像都在说bother的用法,我想知道这里为什么用tends,难道是和cached平行吗?还有researchers have discovered是作为插入语吗?
搜了讨论,好像都在说bother的用法,我想知道这里为什么用tends,难道是和cached平行吗?还有researchers have discovered是作为插入语吗?
主语是A scrub jay,因此谓语用tends, tends和can remember并列
researchers have discovered是插入语,不影响句子结构
I choosed A, cause I think "... can remeber, and (can) tend..."can -- ellipsis
if stored long enough to have rotted
真实条件句我觉得不能省略主语
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