Complete the sentences.Use present perfect.
1)Mrs Johnson (become) a writer.2)Bob and Charles (be) to the States many times.3)You (swim) in the Pacific?4)We (not,do) our lessons.5)I (not,decorate) the hall.6)The girls (jump) high.Their results are very good.But they (run) 5 kilometres badly.7)Betty (begin) learning English.8)Polly (ring ap) Doctor Gordon?9)Boris (come) back? - No,he hasn't.He never comes back earlier than six.10)Jane says she (not,see) any of the Harry Potter films before.

1) Mrs Johnson has become a writer.2) Bob and Charles have been to the States many times.3) Have you swim swung in the Pacific?4) We haven't done our lessons.5) I haven't decorated the hall.6) The girls have jumped high. But they have runned 5 kilometres badly.7) Betty has begun learning English.8) Has Polly ringed up Doctor Gordon?9) Has Boris come back? 10) Jane says she hasn't seen any of the Harry Potter films before.