a) It ('s in Room D), are you new, I (am), nice to meet you, how do you spell, It ('s M-A-R-K-U-S), I (see), how old are you, I (m twelve), and you, I (m twelve too), are you in class 2E, I (am).
b) 1 Linda - she, 2 Mark - he, 3 Tom and Lyn - they 4 Sue and I - we, 5 Ben and you - you, 6 eraser - it