—Look at the boy running on the ground. Is it Davis?
—It ______ be him. I saw him go to the teacher’s office just now.
A.mustn’t | B.can’t | C.could | D.might |
—Look at the boy running on the ground. Is it Davis?
—It ______ be him. I saw him go to the teacher’s office just now.
A.mustn’t | B.can’t | C.could | D.might |