01. TAKE a look at the following sings and WRITE sentences with must / mustn't/ not have to according to the verbs in parentheses. A) (to turn off) B) (to take) C) (to pay) D) (to smoke) E) (to walk) F) (to work) G) (to be silent)
A) Must not turn off the lights B) Must take your umbrella with you C) Must pay for your lunch D) Must not smoke E) Must walk your dog every day F) Must work hard every day G) Must be silent in the library
