Răspuns:
1. is, doing;
think, is playing;
isn't, is;
is playing.
2. do, go;
don't, go.
3. was, doing;
was looking, wanted.
4. does, live;
lives.
5. do, want;
don't, want;
do, think;
don't think.
6. is, working;
not, is repairing.
