What Might Have Happened?
Instruction: Make a logical deduction using a perfect modal.
Situation: Sarah is yawning and can't keep her eyes open in class. What might have happened?
Possible answer: She must have gone to bed late.
Instruction: Identify the mistake and rewrite the sentence correctly.
Sentence: She must has forgotten her keys.
She must have forgotten her keys.
Instructions: Rewrite each sentence in the opposite voice (active or passive).
Sentence: They must have broken the window.
The window must have been broken by them.
Instructions: Read each mystery and use the clues to make a logical deduction.
Mystery: Someone ate the last slice of pizza. There is pizza sauce on Mark's shirt. What might Mark have done?
Possible answer: Mark might have eaten the last slice of pizza.
Instructions: Choose the correct option to complete each sentence.
Sentence: She ______ forgotten her homework at home. She can't find it in her backpack.
A) must have B) must has C) must be
A) must have
Instruction: Make a logical deduction using a perfect modal.
Situation: The classroom floor is wet, but nobody is cleaning it. What might have happened?
Possible answer: The floor might have been cleaned recently.
Instruction: Identify the mistake and rewrite the sentence correctly.
Sentence: The homework should have finish yesterday.
The homework should have been finished yesterday.
Instructions: Rewrite each sentence in the opposite voice (active or passive).
Sentence: The teacher should have checked the homework.
The homework should have been checked by the teacher.
Instructions: Read each mystery and use the clues to make a logical deduction.
Mystery: The classroom lights are on, but everyone has gone home. The teacher was the last person to leave.
Question: What must have happened? Use the passive voice.
Possible answer: The lights must have been left on by the teacher.
Instructions: Choose the correct option to complete each sentence.
Sentence: The classroom windows ______ before the storm started.
A) should have closed B) should have been closed C) should be close
B) should have been closed
Instruction: Make a logical deduction using a perfect modal.
Situation: Tom studied all night, but he failed the exam. What might have happened?
Possible answer: He might not have understood the questions.
Instruction: Identify the mistake and rewrite the sentence correctly.
Sentence: They might have been stole my bicycle.
My bicycle might have been stolen.
Instructions: Rewrite each sentence in the opposite voice (active or passive).
Sentence: The police might have arrested the suspect.
The suspect might have been arrested by the police.
Instructions: Read each mystery and use the clues to make a logical deduction.
Mystery: A student's notebook has disappeared. Two classmates saw Alex near the desk, but nobody saw him take it. What might Alex have done?
Possible answer: Alex might have taken the notebook.
Instructions: Choose the correct option to complete each sentence.
Sentence: Jack got a very low grade because he didn't study. He ______ more carefully for the exam.
A) should have studied B) should have been studied C) must has studied
A) should have studied
Instruction: Make a logical deduction using a perfect modal.
Situation: The classroom door is locked, but the teacher is nowhere to be found. What might have happened?
Possible answer: The teacher may have forgotten to unlock the door.
Instruction: Identify the mistake and rewrite the sentence correctly.
Sentence: He shouldn't have been tell the secret.
He shouldn't have been told the secret.
Instructions: Rewrite each sentence in the opposite voice (active or passive).
Sentence: The invitations should have been sent before the party.
Someone should have sent the invitations before the party.
Instructions: Read each mystery and use the clues to make a logical deduction.
Mystery: The classroom window is broken. A ball was found nearby, and several students were playing outside. Give two possible explanations: one in the active voice and one in the passive voice.
Possible answer:
Active: One of the students might have hit the window with the ball.
Passive: The window could have been broken by a ball.
Instructions: Choose the correct option to complete each sentence.
Sentence: Nobody knows who broke the school computer, but it ______ by one of the students.
A) might have damaged B) might have been damaged C) might be have damaged
B) might have been damaged
Instruction: Make a logical deduction using a perfect modal.
Situation: The school computer is broken, and an important file has disappeared. What might have happened?
Give one explanation in the active voice and another in the passive voice.
Possible answer:
Active: Someone might have deleted the file.
Passive: The file might have been deleted accidentally.
Instruction: Identify the mistake and rewrite the sentence correctly.
Sentence: The invitations could have sent yesterday, but nobody sent them.
The invitations could have been sent yesterday, but nobody sent them.
Instructions: Rewrite each sentence in the opposite voice (active or passive).
Sentence: The company could have prevented the accident if it had followed the safety regulations.
The accident could have been prevented by the company if it had followed the safety regulations.
Instructions: Read each mystery and use the clues to make a logical deduction.
Mystery: The answers to an upcoming exam were found on a student's phone. Only the teacher and the school principal had access to the original document. However, nobody knows how the answers got there.
Give two possible explanations using different perfect modals. Use the passive voice in at least one answer.
Possible answer:
Active: Someone may have shared the answers with the student.
Passive: The exam answers could have been copied from the original document.
Instructions: Choose the correct option to complete each sentence.
Sentence: The confidential documents disappeared from the office. The security cameras were turned off, so the incident ______ intentionally, but there is not enough evidence to be certain.
A) must have planned B) could have been planned C) should have been plan
B) could have been planned