1.Anna didn't go to watch TV this evening.(把doesn't改成didn't)
2.They must be home before 12 o'clock.(being改成be)
3.Are you going to take up windsurfing next year?(在句子前面加一个Are)
4.We musn't forget Mum's birthday.（把to 去掉）
5.Is it going to rain soon?（把Does改成Is)
6.They don't go to travel by bus.(把going改成go)