8 Complete the sentences. • am (x2) • is (x3) • 's isn't 'm • are • aren't 1 What 's number one? 2 How old Erin? Sarah. 3 Hi. I Michael and this 4 A: __ you fourteen? B: Yes, 1_. 5 A: _ it a new mobile phone? B: No, it __. 6 A: __ I right? B: No, you —