Her parents must not receive any message about her. They don’t know what has hap

游客2023-12-30 53

问题 Her parents must not receive any message about her. They don’t know what has happened to her.

选项 A、must not have received
B、ought not to receive
C、not ought to have received
D、not ought to receive

答案 A

解析本题考查情态动词的用法。从后一句可知．此处表示肯定的猜测，因此要用must。而ought to表示“应该……”，不符合题意，故排除B。ought to的否定形式是ought not to，故排除C和D。因此，选A。

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