Correct the mistakes 1) They have been to the shops

1) They were to the shops. They will be home soon2) Joe is playing in the garden at the moment.3) I go to work by car every day4) The builders have already finished the block of flats5) He has broken his arms.6) Sam has just finished read a very interesting book7) Water boils at 100 C8) John has lived here since 19869) I have been studying this subject for five years10) Who has used my scissors?