---Look at the boy running on the playground. Is it David?
---It ______ be him. I saw him go to the teachers’ office just now.
| A．mustn’t | B．can’t | C．couldn’t | D．must |
相关试题
What honest boy! And he is best student of all.
| A．a; a | B．an; / | C．a; the | D．an, the |
---Don’t drop litter in the river. ---_________.
A. It doesn’t matter
B. Sorry, I won’t
C. I’d love to
粤公网安备 44130202000953号