【正文】
______________________. Kitty: We mustn’t play on the escalator. Jill: I see. __________4_________. Kitty: We can find it in the department store. V. Write about some rules in our school with the patterns “we must/must not…” (用句型寫(xiě)一寫(xiě)校園內(nèi)的規(guī)則 )2 must listen to the teachers in class. must _________________________________________________________