Complete the sentences with the past participles of these verbs. work/live/have/know/not see 1. the've in the same country since they were born. 2. how long have a monitor at the summer camp? 3. how long has travel book from the library? 4. new exhibition. 5. how long have neighbours?
2. work
3. have
4. not see
5. know
2. worked
3. had
4. haven't seen
5. known