1) You ..... turn off the tap. a) must b) mustn't 2) We ..... plant trees. a) mustn't b) must 3) You ..... turn off the lights. a) must b) mustn't 4) You ..... throw rubbish in the street. a) must b) mustn't 5) We ..... cut down trees. a) must b) mustn't 6) You ..... walk, cycle or use public transport. a) mustn't b) must 7) We .... buy unnecessary things. a) must b) mustn't

Full Blast Plus 6 Module 5C Game 1

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