41. The police arrested 200 students on the University campus.
(a) 200 students had been arrested on the University campus by the police.
(b) 200 students has been arrested by the police on the University campus.
(c) 200 students were arrested by the police on the University campus.
(d) 200 students are arrested on the University campus by the police.
42. I have bought a new car.
(a) A new car was bought by me.
(b) A new car is bought by me.
(c) A new car has been bought by me.
(d) A new car had been bought by me.
43. Must we cut this tree?
(a) Must this tree will cut?
(b) Must this tree be cut?
(c) Must this tree was cut?
(d) Must this tree is cut?
44. The boys were digging a hole in the ground.
(a) A hole had been dug in the ground by the boys.
(b) In the ground, the boys dug a hole.
(c) A hole in the ground has been dug by the boys.
(d) A hole was being dug by the boys in the ground.
45. Surely the lost child must have been found by now.
(a) Surely must have found the lost child by now.
(b) Surely someone must have found the lost child by now.
(c) Surely now must have found the lost child.
(d) Now must have found the lost child surely.