Question

---Look at that girl! Is that Susan?
---No , it _______ be her. She has gone back to her hometown.

A．mustn’t	B．can’t
C．must	D．might

Answer 1

B

试题分析：句意：看那个女孩！那是Susan吗？不，一定不是她。她回自己家乡了。表示否定的猜测要用can’t，故选B。