老师们好!Their methods do not attempt to estimate the actual biomass (the amount
of living biological matter) of fish species in particular parts of the ocean,
but rather changes in that biomass over time.句中的changes in that biomass为什么选择in做changes的定语介词呀,谢谢老...
... building a
house, but he was troubled to find it of very irregular shape, with no edges
nor corners, nor a flat plane on it. 老师您好!想请问一下最后为什么要加一个on it,不重复吗?如果不重复,是为什么呢?(感觉没太见过with sth on it,一般就是with sth)...
omputers and other machines have and ____ to change the way we live.A continue B continued C would continue D will continue 据题意D 答案最佳。原句中助动词have 后省略了changed,这个省略句结构正确吗?盼专家老师指导解惑。
有一道题:
He _____ in London for more than ten years, but he has never regretted his final decision to move back to China.
这个填lived
请问老师, 为什么有完成时标志,而且下半句是现在完成时(过去影响了现在),此空还不填过去完成时呢?
美国CNN网站的一篇文章有这样一句:
A 300 million vaccine effort gave many their lives
back and a once-apocalyptic jobs crisis is much improved.
请问这里的many 是否应该为many of?