Complete the sentences with a question tag.
1.They could help you, ______?
2.They will go there tomorrow,______?
3.He wrote the exercise,_____?
4.We have got something to tell her, ____?
5.There is something interesring in the box,____?
6.They had nothing to eat,_____?
7.He saw nothing strange in the situation,___?
8.You are never tired,___?
9.They were never happy,______?
10.They were always happy,_____?