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。