5 Complete the sentences with the correct form of the verbs in brackets. Use must have or had to. 1 | ________ (plan) my work day very carefully when I started this job because I wasn't used to so many responsibilities. 2 You (be) crazy to do such (get) married - look at a dangerous thing. 3 They that ring she's wearing! 4 Amanda looks very sad. She (fail) her biology test. 5 1 (hand) in my project yesterday. It was the deadline for everybody. 6 As I'm on a special diet, I ______ (notify) the restaurant about it when I was booking a table.