unit1
    Answer key for exercise1:1 You will know the result when you add up all the numbers.        2 We tired to calm him down but he kept shouting excitedly.3 After a long stay in hospital, Mary recovered.4 Since Li Ming settled here ,he has got along well with his neighbors.5 If you don’t want to stay with me, you can pack and go.6 During the war ,I suffered a lot, I wrote my diary to set down my experiences  so I would remember them when I was old.
Answer key for exercise2:1 got tired of   2 got ...