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You mustn’t pick the flowers.
What do our friends say to them?
(Use must and mustn’t)
Rules in Pulic Places
You ______cross the street.
You________wait for the green light.
You________spit on the ground.
You________litter.
You_______keep off the grass.
You_______pick the flowers.
You___ take good care of young children.
mustn't
must
mustn't
mustn't
must
mustn't
must
理解look out
Look out 是指你已经看到有事发生，比如狮子来了，情况紧急，小动物大喊 look out.
Read the text by yourself
Act out
（拍手读）
You mustn't you mustn't you mustn't
cross the street now.
You mustn't you mustn't you mustn't
spit on the ground.
You mustn't you mustn't you mustn't
pick the flowers.
You must you must you must