Complete the sentences. use must, mustn’t or needn’t. 1 i go to bed late tonight. i’m planning to get up early tomorrow morning. 2 benny work harder. he’s going to fail his exams, if he doesn't. 3 we go shopping this afternoon. the fridge is full. 4 we give fran a big present. something small will be ok. 5 i’m going to tell you a secret, but you tell anyone! 6 you cross the street at the pedestrian crossing. 7 you shout! i can hear you! 8 you smoke in restaurants in the uk. it’s illegal. 9 you do your homework on time! 10 we forget helen’s birthday. it’s next tuesday.