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Modals: Do's and don'ts
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What does this sign express: Obligation, prohibition, or permission?
Prohibition (you may not cross the road)
Oops!
Okay!
Complete the sentence: "Sorry, the dog ________ come into the house."
can't / mustn't / is not allowed to
Oops!
Okay!
Complete the sentence: "She ________ drive her car to the store; it's right around the block, so she can easily walk there."
doesn't need to / doesn't have to
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Obligation (you must only go this way)
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Permission (you may press this button for attention)
Oops!
Okay!
Complete the sentence: "You ________ pay attention and take good notes in class so you can get a better grade."
should / ought to / must / need to / have to
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Prohibition (no parking around this sign)
Oops!
Okay!
Complete the sentence: "You ____________ climb up the volcano today; there's smoke near the top."
shouldn't / mustn't / can’t / are not allowed to
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Prohibition (you may not enter this way)
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Obligation (you must stop)
Oops!
Okay!
Complete the sentence: "If you want to stay healthy, you __________ make sure to exercise every day."
should / ought to / need to / must / have to
Oops!
Okay!
Complete the sentence: "If you're finished with dinner, you _____ have dessert."
can / may / are allowed to
Oops!
Okay!
Is this sentence correct? "I'm have to wear a helmet when I'm riding on my skateboard."
Incorrect: "I have to wear a helmet when I'm riding on my skateboard."
Oops!
Okay!
Complete the sentence: "You __________ get water from that tap. It's not safe to drink!"
shouldn’t / mustn't / can't
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Prohibition (no parking here)
Oops!
Okay!
Complete the sentence: "My best friend is in the hospital. I _______ visit him to cheer him up."
should / have to
Oops!
Okay!
Complete the sentence: "You _____ now kiss the bride."
may / can
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Prohibition (you may not go faster than 40 mph) or Obligation (you must go slower than 40 mph)
Oops!
Okay!
Is this sentence correct? "She didn't need to bring her umbrella because it wasn't raining."
Correct
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Permission (you may come in)
Oops!
Okay!
Complete the sentence: "You ________ use a telescope to see the planet Mars in the sky, but it helps a lot."
don't need to / don't have to
Oops!
Okay!
Complete the sentence: "The door isn't locked, so you ________ come in any time you want."
can / may
Oops!
Okay!
Complete the sentence: "If you want to work at a construction site, you ___________ wear a hat and gloves."
must / have to / need to
Oops!
Okay!
Is this sentence correct? "You shouldn't to ride your bicycle in the rain."
Incorrect: "You shouldn't ride your bicycle in the rain"
Oops!
Okay!
Is this sentence correct? "You can order seafood, but you can't get anything too expensive."
Correct
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Obligation (you must slow down)
Oops!
Okay!
What does this sign express: Obligation, prohibition, or permission?
Permission (you may cross the road)
Oops!
Okay!
Complete the sentence: "You ______ bring pets with you when you stay at this hotel."
can / may / are allowed to
Oops!
Okay!
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