1) You _______ be conscious of the signs that are there for everybody's safety. a) should b) shouldn't 2) You ________ lose your ticket. a) must b) mustn't 3) You _______ be rude, disruptive. a) must b) mustn't 4) You ______ push and shove and try and run for the door if they're closing a) should b) shouldn't 5) You _______ always let somebody off first before you get on. a) should b) shouldn't 6) You _________ try and get on at last minute when the doors are closing a) must b) mustn't 7) You ______ take a bottle of water with you, to keep hydrated. a) must b) mustn't 8) You ________ wear heels because the platforms are very short. a) must b) mustn't 9) You _______ interact with too many people because you might miss a stop. a) should b) shouldn't

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