Listen to two students trying to solve the riddle in the picture. Look at the underlined past modals in sentences a–g and match them to definitions 1–3. Type the corresponding letters a-g into the squares at the end of each definition.【听力原文】【课文解析】
y11-1-1.mp3
选项：
1e, f, g
2 c
3 b

Sentences

a The barman can’t have liked the look of the man. b No, it couldn’t have been that. It’s too obvious. c The man must’ve been thirsty or he wouldn’t have asked for some water. d He might’ve just walked across the desert and was dying for a drink. e The barman could’ve been scared, so he took out his gun. f The barman may have recognised him from the newspapers. g He might not have known his photo was in the papers.

Definition

1 确信某事一定发生过 1 2 觉得某事可能（没有）发生过 d 2 3 确信某事一定没有发生过 a 3

__3__(完形填空)
.1
.2
.3