A scrub jay can remember when it cashed 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.
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
Ans: D
當我看到題目有", and"時我就開始confuse了 因為我不曉得該用什麼規則 但是我還是先刪去了C和E因為"it"
後來選A是覺得"if stored long enough to have rotted"感覺上還滿通順的 我對D還有另外一個問題就是為什麼是"tends"而不是"tend"呢?