wait practise give serve return
56.Mum will not let Simon go out next time unless he home before dark.
57.﹣Who us a talk on how to protect the environment next Monday?﹣Mr. Smith is.
58.We are sure that he will win the game because he a lot for it.
59.─What's wrong with you,Jane?
─I'm a little sick and I for Dad to take me to the hospital.
60.Tim is a manager now,but he once as an engineer for five years.