Jim’s father was born _________ July 10th, 1981. So tomorrow is his birthday.A. in B. on C. at
She________to an English program while her parents________TV.
—I didn’t see you at the beginning of the party last night.—I________on nay biology report at that time.
The girl was flying a kite________her father came back.
—I went to see you yesterday evening.But you weren’t in.Where were you then?—I’m sorry.I________a walk by the lake with my classmates.
While we________about Mr.Wang in the classroom,he came in.