单选题 "Is Roger coming tonight?"
"He said he was coming but he hasn't ______ yet. "
  • A. warned
  • B. appeared
  • C. presented
  • D. shown
【正确答案】 B
【答案解析】[解析] A)、D)可先排除,但B)和C)项易混淆。 B)appear:出现,到来,如: A rainbow appeared in the sky after the rain.雨后,天空出现了一道彩虹。 C)present:作动词用时,表示“向……提交;提出”,与本题意思不符合,应排除。