问题
Is that Lucy’s sister, Lily?—No, it _______ be her. She has gone to English.
A:could
B:can
C:can’t
D:mustn’t
B:can
C:can’t
D:mustn’t
正确答案是：
同类题型
What is Mom cooking in the kitchen? — Fish, I guess. How nice it _______!
Where are my family photos, Jim?—I don’t know. Maybe_______ on the dresser.
Our math teacher ______ in our school for 20 years and he _____ here when he was 23 years old.
“Well done, John! Not a single mistake ________ in your exam paper this time!” said the teacher．