1. The missing children were last seen playing (play) near the river.
2. Having completed (complete) the book, he had a holiday.
3. Found (find) only in the Andes, the plant is used by local people to treat skin diseases.
4. The accident seems to have happened (happen) at around 1. 00 p. m yesterday.
5. Do something! Don't just sit there twiddling (twiddle) your thumbs.
6. Last year I studied abroad. I appreciate having had (have) the opportunity to live and study in a foreign country. .
7. Looking (look) down from the hill, the town spread out before us towards the coast.
8. Marta doesn't like to have her picture taken (take). She avoids being photographed (photograph).
9. I don't agree with smacking (smack) children if they do something wrong.
10. The book published (publish) last week is his first novel.
11. Having photocopied (photocopy) all the papers, Sarah put them back in the file.
12. I found a coin lying (lie) on the sidewalk.
13. Our mechanic said that he expects to have fixed (fix) the brake on the car before we pick it up.
14. Life must be unpleasant for people living (live) near busy airports.
15. Having parked/ Parking (park) the car about a kilometre from the stadium, I walked the rest of the way.