Make up sentences by joining them together. Use the Past Simple, Past Continuous, Past Perfect.
1. Ruth didn’t learn well. (That is why) She couldn’t pass the exam.
2. Nick got up very late yesterday. (So) He was late for school.
3. Jim was working in the garden. (When) His friend phoned him.

1. Ruth didn't learn well, that's why she couldn't pass the exam.2. Nick got up very late yesterday, so he was late for school.3. Jim was working in the garden, when his friend phoned him.В принципе тут элементарно.