He did not attend the meeting yesterday. He______ill.

admin2009-07-15  42

问题 He did not attend the meeting yesterday. He______ill.

选项 A、must be
B、must have been
C、should be
D、should have been

答案B

解析 表示对现在情况的猜测、判断时,形式为:must+动词原形;表示对过去事情的猜测时,形式为:must+ have+过去分词。根据题意,应选[B]。
转载请注明原文地址:https://jikaoti.com/ti/q4lsFFFM
0

最新回复(0)