1.--- Where is your office? --- It’s ________ the corridor.
A. in front of B. beside C. at the end of D. over there
2. --- Which are your exercise-books? --- __________________.
A. The ones on the desk. B. They are in the desk.
C. The exercise books are mine. D. The exercise in the schoolbag.
3. Betty is ______ duty today. Now she is cleaning the blackboard _____ _ a blackboard eraser.
A. in…on B. from…in C. with…from D. on… with
4. --- John’s mother is ill. --- ____________________.
A. All right. B. I am sorry to hear that.
C. Thank you. D. Let’s go to see her.
