Fill in the Blanks GRAMMAR 1 (2). UNIT 13Online version GRAMMAR 1 (2). UNIT 13 by María Marteles 1 eat so much chocolate - go to bed - drink lots of water - study hard tonight - sit down - play tennis this afternoon 1 . A : I've got a pain in my right arm . B : You shouldn't 2 . A : I'm very tired and it's late . B : Then you should , Sam . 3 . A : My foot hurts . B : You should for a while . 4 . A : I feel sick . B : Well , you shouldn't ! 5 . A : I've got a difficult maths exam tomorrow . B : You should . 6 . A : Sarah's got a terrible cold . B : She should rest and .