[ Active and Passive Voice ]
They think that someone started the fire on purpose.
A. Someone is thought to start the fire on purpose.
B. They think that the fire which was started by someone on purpose.
C. The fire is thought to be started on purpose.
D. The fire is thought to have been started on purpose.

Random Topics:
Future Tenses, Conditionals and ProfessionsCan/CouldAdjectives and DegreesInterrogative Pronouns & AdverbsFuture Passiveused to, be used to, get used toHas Got & Have GotGrammar - FuturePast Simple & Past ContinuousSimple Present ProgressiveOther quiz:
Grammar › View__________ time does the bus arrive?
It arrives at 3 o’clock.
A. What
B. When
C. How
Grammar › View
Let’s eat pizza, ________?
A. should we
B. shall we
Compound and Complex, Conditionals › ViewWhich of the following is NOT a coordinating conjunction (FANBOYS)?
A. For
B. Or
C. However
D. When
Vocabulary › View
A long journey
A. Fragment
B. Torrent
C. Trek
D. Crucial
