这是英语的一种习惯.英语中一般都将肯定的放在前面,比如I think that,I agree that 等等,而不会出现I don't think that或者I don't agree that
但是不会把I didn't say that it is impolite to smoke during a meal in France.改成I said that it is not impolite to smoke during a meal in France.这样就改变了句子原意了.
我解释清楚了吗?