Explanation:
Wendy: Hey, Kate. Are you coming to Rachel's house tonight! Kate: Well, I would come if I (1) didn't have (not have) to look after my baby brother. My parents are going out tonight.
Wendy: (bio) Oh. Rachel (2) disappointed if you don't come. She'd really like you to be there. It's her birthday, you know,
Kate: Her birthday! I didn't know it was her birthday! If I had known, (3) (ask) my parents to get a baby sitter. Now they won't let me come unless they (4) (can / find) someone else to look after Bobby.
Wendy: You always look after Bobby when your parents (5) (go) out Why don't you ask your sister to do it tonight!
Kate: Well, 1 (6) (ask) her if today wasn't so special for her. You see, she's going out with Peter. She'll be very angry if she (7) stay at home. (have to) Wendy: Oh, well. If I (8) (be) you, I'd give it a try. Anyway, (9) (give) me a ring if you