Last summer I decided to get a part time job so I could have earned some money. I got the newspaper and circled all the jobs that I thought I could do. I mustn't have applied for more than 20 jobs - everything from working in a supermarket to teaching

Task
3. There are five mistakes with modal verbs in the text. Find them and write the corrections below.
(11) Last summer I decided to get a part time job so I could have earned some money. I got the newspaper and circled all the jobs that I thought I could do, (12) i mustn't have applied for more than 20 jobs - everything from working in a supermarket to teaching English. (13) However, I could have written a good letter because I wasn't invited to any interviews. I got email after email politely telling me that my application had been rejected. (14) One company even told me that with my lack of experience I needn't applied. I was really disappointed and in the end I gave up looking for a job. (15) A few weeks later I realised I should had asked my dad. He's a gardener and he had been looking for someone to help him for the summer. He didn't ask me because he didn't think I would want to work with him,