单选题 I was thirsty, for I ______ nothing all day.
  • [A] drank
  • [B] had drunk
  • [C] had been drinking
  • [D] have drunk


【正确答案】 B
【答案解析】was thirsty指过去，在此之前“什么也没喝”要用过去完成时。答案为B。