A scrub jay can rememberwhen it cached a particular piece of food in a particular place, researchershave discovered, and tend not to bother to recover a perishable treat ifstored 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 recoveringa perishable treat (D)
E. tends not bothering to recover a perishable treat it
我想问researchers have discovered在这里做什么？是和 can remember，tends not to一起平行么？感觉在这里莫名其妙，还是我没读懂？作者: chaseconsult 时间: 2012-3-7 19:26
can remember 和tends not to平行
a scrub jay can remember ....and a scrub jay tends not作者: veralove3271 时间: 2012-3-8 06:51
researchers have discovered不是一个有主谓宾的完整句子么，那既不是平行，前半句话里怎么出现了can和have discovered两个谓语呢？不懂额~~
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