has to - Milo ________ write 3 10-thousand essays for his course. He hates it!, don't have to - We ________ tidy up the house. Jenna has already done it., mustn't - You ________ park here! You'll get a fine!, doesn't have to - She ________ pay for the children, as this museum is free for them., have to - This sign says you _______ keep your dog on a lead., must - You _______ wear a helmet when riding a motorbike. It's the law., didn't have to - I _________ finish this task yesterday, so I went home earlier., couldn't - You __________ take photos here a year ago, but now it's allowed., can - You _________ call me if you need some help., had to - We __________ leave, because they were closing., don't need - You _________ to do this task now, it's optional.,

B2. Modal Verbs

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