Task 4. fill in the blanks with can / can’t or must / mustn’t: she is ill, so she ………………………. see the doctor. it’s raining heavily. you …………………… take your umbrella. we ………………………………. (not / pick) the flowers in the park. mike is nine months old. he ……………………………… (not / eat) nuts. i am very tall. so i …………………… play basketball. i’m sorry but we …………………………………………. (not / come) to your party tomorrow. you are speaking very quietly. i ………………………………….. (not / understand) you. …………………….. i use your phone? we …………………….. go to the bank today. we haven’t got any money. my hands are dirty. i ……………………….. wash them. it’s late. i …………………………. go now. you ………………….. stop at a red traffic light. you ………………………………….. (not / speed) in the city. tourists ……………………… take their passports when they go abroad. footballers …………………………………….. (not / touch) the ball with their hands. ……………………… you play the guitar? i ……………………………………… (not / come) with you now. because i’m studying my lessons.