单选题 I think she seems ______ her promise.
  • A. to have forgotten
  • B. to forget
  • C. forget
  • D. forgot
【正确答案】 A
【答案解析】[解析] 本题测试的是非谓语动词用法。不及物动词seem后面应跟不定式。此句中“忘记”发生在谓语动词动作seems之前，所以本题答案应该是选项A to have forgotten。