— Excuse me, is there someone in this seat?—_____. A man left his bag here and went to the washing room.I'm afraid so B. I don't think soC. I don't know D. I hope not
— I always feel a little nervous when I talk to the headmaster.— ______ . She is strict, but she’s also kind to her students.
______ may have a chance to be successful if he tries his best.
You will fall behind the others ______ you start to work hard.
— Excuse me. Is the museum open all day long?— ______ , only from 9:00am to 5:00pm.
The student ______ his homework and handed it to the teacher.