很高兴能够在这里回答你的问题,应该为：
1 If you (don't have) time i (will ask) my brother to help me
2what (will happen) if they meet at the party
都是主将从现的句子i will have to clean the room before my mother (arrive)jack will travel to hainan if he(pass)the examif you don t feel well i(take) you to see a doctorarrives passes will take