题目:
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.
选项:
A、tend not to bother to recover a perishable treat if
B、they tend not to bother recovering a perishable treat
C、tending not to bother to recover a perishable treat it
D、tends not to bother recovering a perishable treat
E、tends not bothering to recover a perishable treat it
答案:
D