单选题 When John said that he would invite us all to a banquet, I think he ______ generous. Don't believe him.
   A) was only                         B) was only being
   C) is only                           D) has only been
【正确答案】 B
【答案解析】be的进行时(+动态形容词)表示一时的表现，此句的意思是，我认为他只是一时兴起的慷慨，不可信。