21. a) Add the correct question tags,then say how they are formed.

1|) You il tell the doctor everything ,.............................?
2) I m well enought to go to school,.........................?
3) You want to get better ,......................?
4) He rarely gets a cold,............................?
5) Keep your arms still,...........................?
6) Let s go out..............................?

b) Use question tags to ask a partner about their age ,their family and their interests.

You are thirteen ,aren t you?
Your brother is older than you ,isn t he?