Choose the word (a, b, c, or d) that best fits each of the blank spaces.
Mr. Tan: Where were you yesterday, Lan? You didn’t come to school.
Lan: I had a bad cold . I had a headache, too.
Mr. Tan: Oh, dear! You were sick. How do you feel now?
Lan: I feel OK, but I’m a little tire
Mr. Tan: Oh, you should stay inside ...........recess. The weather’s awful today. Did your Mom write a sick note for you?
Lan: No, she didn’t. But I have this note from the doctor.
- in
- at
- on
- when