1) the audience were carried the singers brilliants perfomanse 2) is it necessary for me to bring my passport? have do …………………………………………….. my passport? 3) i am sure that the cat is in the house somewhere. be the cat ……………………….. in the house somewhere. 4) i am sure that john is not the thief. be john ……………………..……… be the thief 5) i think you were wrong to sell you bike. shouldn’t you ………………………………… bike. 6) it’s possible that bill saw me. may bill………………………………… me 7) it was a mistake for you to buy that car. bought you ………………………………. that car