1. 1.have
2.have
3.has
4.has
5.have
6.has
2. 1. haven't visited
2. hasn't flyed
3. have traveled
4. have ate
5. have maked
6. has buyed
3. 1. how
2. ever
3. never
4. since
5. for
6. just
7. already, yet
4. 1. How long have you been living here?
2. They have celebrated this day since hundread of years.
3. I haven't seen them since last Tuesday.
4. We have just seen the firework display.
5. I have never ate pancakes.
6. Have you ever hear reggae music?
7. He hasn't finished that book yet?
8. I have already maked some baked potatoes to eat.
