In each of the following sentences, the second part cancels some information given by the
first part. However, this seems to result in quite acceptable utterances in group(l)and in very awkward utterances in group(2). Explain why.(北外2002研) Group(1) a.老张有三个小孩子,其实还不止三个。 b.我只喜欢黄色和蓝色,不过试试红色也未尝不可。 c.约翰的普通话说得还可以,确切地说是非常棒。 Group(2) d.我特后悔选修了这门课,其实我没有选修这门课。 e.她这次考试又不及格,不过她上次及格了。 f.我在乡下日子过得很苦,说真的我没在乡下呆过。