Complete the sentences by changing the form of the word in capitals when this is necessary. You may sometimes need a

16 I’ve always wanted to be a travel photographer and take pictures of exotic places. 17 None of us were sure which direction to go in, so we got out the map. 18 Since I was here five years ago, Delhi has changed so much that it’s practically unrecognizable. 19 Once we got to the station, I quickly looked through the timetable to see when the next train was. 20 I’ve got a cousin at university who is studying tourism and hopes to open a hotel. 21 As we got closer to the Amazonian village, the inhabitants came out to meet us. 22 The arrival of Flight 472 from Amsterdam has been delayed by one hour.