Ex.2
1. c (make - made)
2. b (have - had)
3. a (see - saw)
4. e (eat - ate)
5. d (tell - told)
Ex.3
1. I phoned my best friend yesterday.
2. We visited a castle last month.
3. My brother tidied his bedroom on Saturday.
4. My mum chatted to her friend last night.
5. We swam in the lake last summer.