# 1เลือกประเภทWhich sentence is in the active voice?The book was read by Sarah.Sarah reads the book.The book is being read by Sarah.The book has been read by Sarah.
# 2เลือกประเภทWhat is the passive form of 'The cat chased the mouse'?The mouse is chasing the cat.The mouse was chased by the cat.The cat has chased the mouse.The mouse chased the cat.
# 3เลือกประเภทIdentify the passive voice structure in present continuous tense.S + is, am, are + Ving + OS + is, am, are + being + V3 + by + OS + has, have + V3 + OS + has, have + been + V3 + by + O
# 4เลือกประเภทConvert 'They will complete the project' to passive voice.The project has been completed by them.The project will be completed by them.The project was completed by them.The project is completed by them.