Question

—Is Jessica giving us a speech this evening?

—No, it _________ be her．She _________ to Japan．

A．mustn't；has gone                                       B．mustn't; has been

C．can't; has gone                                             D．can't; has been

Answer 1

C

【解析】考查情態(tài)動(dòng)詞的使用。根據(jù)題意不可能是她，她已經(jīng)去了日本了可知第一空應(yīng)該使用can’t表示“不可能”，第二空使用has gone表示“已經(jīng)去了”。mustn’t表示“禁止”；has been表示“曾經(jīng)去過”，故答案為C項(xiàng)。