81.I have come ……………………..(realize) the secret of happiness. 82.You are the last person ………………………………( see ) her alive. 83. The pilot was the only one…………………….…………..( survive ) the air crash. 84. The diagrams …………….…………… ( make) by young Faraday were sent to Sir Humphry Davy at the end of 1812. 85. The gentleman …………………………( live ) next door to me is a well-known orator. 86. All the astronauts …………………………………. (orbit ) the earth in space capsules are weightless 87. The street ………………………………..…………( lead) to the school is very wide. 88. The system ……………………………….…… (use ) here is very successful. 89.. The first man…………………….. (interview ) was entirely unsuitable. 90.. I’ve got a bottle of wine but I haven’t got anything…………………… ( open) it with. 91. We had a river………………………….. ……………… ( swim). 92. Be sure to follow the instructions………………………………….. . (give ) at the top of the page.