Share Look 3 Unit 8 good/silly/fun to ... + must
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It is good / wrong to say bad words.
wrong
It is / isn't fun to play games with friends.
is
It important / fun to study before the test.
important
friendly / give food / others
It is friendly to give food to others.
fun / play soccer / if you're sick
It isn't fun to play soccer if you're sick.
fun / to school / with no friends
It isn't fun to go to school with no friends.
silly / worry / about the test
It is silly to worry about the test.
important / go to bed early /when you have school the next day
It is important to go to bed early when you have school the next day.
It is silly / good to help out at home.
good
It is important / dangerous to climb tall trees.
dangerous
It is easy / healthy to eat vegetables.
healthy
It is silly / right to go to sleep in the morning.
silly
I have a toothache. You _____ go to the dentist.
must
He's sick. He ____ stay in bed.
must
She has sore eyes. She ____ look at her tablet at night.
mustn't
We have stomachaches. You _____ eat any more pancakes!
mustn't
