A.
Jojo : Were you in class on Tuesday?
Anna : No, I wasn't. I was in class on Monday, but not on Tuesday.
Jojo : Were you in class on Wednesday?
Anna : Yes, I was. I was in class on Wednesday, but not on Thursday.
Jojo : You weren't in class on Friday, were you?
Anna : No, I wasn't. I wasn't in class on Thursday or Friday.
Jojo : Were you in class in January?
Anna : No, I wasn't. I was in class in December, but not in January.
Jojo : You weren't in class in September, were you?
Anna : No, I wasn't. I was in class in October, but not in September.
Jojo : Where were you last September?
Anna : In New York. Last September I was in New York.
B.
Mr. Bob : What day is today, Dr. Rob?
Dr. Rob : Today is Monday, This is January.
Mr. Bob : Is this your briefcase, Dr. Rob?
Dr. Rob : No, it isn't. Mybe it's Dr. David's briefcase.
Mr. Bob : Where is Dr. David? Do you know?
Dr. Rob : Dr. David in the hospital. He's not very well.
Mr. Bob : WasDr. David in the hispital last week, too?
Dr. Rob : No, he wasn't. He was very well last week.
Mr. Bob : You were in Washington D.C for several days, weren't you?
Dr. Rob : Yes, I was. I was in Washington D.C in December.
Mr. Bob : Where were you in November?
Dr. Rob : I was here in November. That was two month ago.
Mr. Bob : Wasn't your friend Joana here last week?
Dr. Rob : Yes, she was. She was here for three days last week.
