1.I have met two of my friends. I met them on my way to school.2.A
month ago my uncle built a new house in the country.We have visited it
recently and enjoy ourselves very much.3.He forgot to close the
window when he left the house.4.He has written several letters this
week.5.Where has Helen gone? I don't see her .- She went home an hour ago.6.
When did the concert begin? 7. I don't think I have ever seen such a
beautiful garden as this one.8.Jack London was born in San Francisco
in an extremely poor family.9. Have you read many books by Jack
London?10.How careless you are! You have broken your mothers favourite
cup.