Modals of Necessity
Complete the sentence with the correct modal of obligation/law: "Drivers _______ stop at a red light."
have to / must
Complete the regret: "I failed the exam. I should _______ (study) more."
have studied
If you are 99% sure something is true right now, which modal do you use?
Must
Complete: "She didn't answer her phone last night. She must have _______ (fall) asleep."
fallen
What is the largest ocean on Earth?
The Pacific Ocean
Which sentence gives advice?
a) You must rest.
b) You should rest.
b) You should rest.
What does "could have + past participle" express?
A past possibility or opportunity that didn't happen.
Complete: "Look at those dark clouds! It _______ rain soon."
might / may / could
Complete: "He ________ (steal) the car; he was with me at the movie theater all night!"
couldn't have stolen / can't have stolen
Which planet in our solar system is known as the "Red Planet"?
Mars
Rewrite this sentence using "supposed to": "People expect us to arrive early."
"We are supposed to arrive early."
Correct the mistake in this sentence: "She should has called me yesterday."
"She should HAVE called me yesterday."
Complete: "He just ate three full pizzas, so he _______ be hungry."
can't
What is the grammatical formula for making a past deduction?
Modal + have + Past Participle
Who painted the Mona Lisa?
Leonardo da Vinci
What is the main difference between "must" and "have to"?
"Must" usually expresses a personal obligation, while "have to" expresses an external rule or law.
Complete: "He ________ (win) the race, but he tripped near the finish line."
could have won
Explain the difference between "He is sick" and "He must be sick."
"He is sick" is a 100% fact; "He must be sick" is a deduction based on evidence.
Make a past deduction based on this situation: "The streets are completely wet this morning."
"It must have rained last night."
What is the chemical symbol for Gold on the periodic table?
Au
Complete with "don't have to" or "mustn't": "You _______ cook dinner tonight; I already ordered pizza."
don't have to
Rewrite this sentence using "should have": "I didn't set my alarm, so I was late."
"I should have set my alarm."
Make a present deduction based on this evidence: "Sarah is wearing a heavy winter coat and shivering."
"She must be cold."
Choose the correct option: "They missed their flight; they (must have / couldn't have) arrived on time."
couldn't have
Which country is home to the Great Pyramid of Giza?
Egypt