Mr. Black ______ my art teacher last term, but now he ______.A. was, isn’tB. is, isn’tC. was, wasn’t
What________from three to four yesterday afternoon?
The event has________to most Americans.
She heard him the piano when she walked past his room.
I remember________you sometime at the school gate last week.You are Mr.Chen.
That’s an important event________American history.