The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia's territorial waters had sharply declined by 1996.
not so 。。that。。并没有(。。以至于。。)
A. 实义动词 to set (表达预测,将来时)与系动词 were 不平行;to set div. more conservatively than they have done
B. to set 与 have been 不平行,要在been 后面加上setting或改为have set以修正平行
C. be + adj. + in doing sth. ;to be表示从现在开始的未来,have been从过去到现在
D. expect sb. that 错误,只能用expect that 或 expect sb to do;were错误
E. expect错误同上;to set 错误
1. twice可以直接加名词,twice(as much as)sth;
2. that 指代pollution。