—Is Kate coming to the party this evening?
—No, she _________ be at the party. She________ to the UK.
A.mustn't; has gone
B.mustn't; has been
C.can't; has gone
D.can't; has been
答案:C
题目分析:句意:凯特今天晚上来参加聚会吗?不,她不可能来参加聚会。她已经去了英国。Mustn’t禁止,不允许;can’t不可能。Been to去过,gone to去了,所以选C。