Ex. 5
1) they are
2) he does
3) I don't
4) I am
5) she isn't
6) they do
7) he doesn't
8) they aren't
9) I do
10) she doesn't
ex. 6
1) Mary is having dinner at the moment.
2) I work hard at school.
3) Alice doesn't like playing chess.
4) We often eat out on Sundays.
5) I never eat fish. I hate it!
6) She loves talking on the phone.
7) Do they go on trips every weekend?
8) Are you doing the washing-up?
9) Does he go jogging every morning?