从括号中选择正确的单词填空。 A: Bill, what time are you going to the party tonight? B: Well, that’s up to Chris. ____1____(If / When) she ___2____(comes / will come) home late from work, we __3____(will / won’t) be able to join you before ten, but ___4____(if / when) she ___5____(gets / will get) home early, we ___6___(are / can be) there at around eight. A: Right, well, can you do me a favour? ___7____(If / when) it ___8____(isn’t / can’t be) a problem, ___9____(can / do) you pick me up on your way to the party? B: Sure, I ___10____(call / ’ll call) you ___11____(if / when) we __12____(are / be) ready to leave home, OK? A: thanks a lot.