单选题 There ______ some mistakes in your composition.
A. have B. has C. seems to be D. seem to be

【正确答案】 D
【答案解析】该题旨在检测考生对there be结构的掌握情况，故应排除A，B。在决定动词 seem的单复数前，要看其后紧跟的名词(即句子的主语)的单复数。mistakes为复数名词，因此，应选seem to be。