Unit 4 Don’t eat in class Section B(1a-1e) 课件（15张PPT）

Have to/ Must (√)

When go out

×

on school nights see friends

do his homework

practice the guitar

do the dishes

watch TV

help his mom make breakfast

clean his room

√ × × √ √ √ √ on school nights every Saturday before dinner in the evening on school days after dinner after school every morning on school days after school before dinner after dinner in the evening every morning every Saturday Rules

Can’t (×)

Have to/ Must (√)

Whe

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