选D.She didn't seem to have changed a lot = It seemed that she hadn't changed a lot.表示change 这个动作发生在seem 之前,所以用了不定式的完成式.
Mum seemed to have known the news.
He didn't seem to have understood the question.
选D.She didn't seem to have changed a lot = It seemed that she hadn't changed a lot.表示change 这个动作发生在seem 之前,所以用了不定式的完成式.
Mum seemed to have known the news.
He didn't seem to have understood the question.