. Put the verbs in brackets in the Present Perfect tense.

      1.   I (live) ____________ here since 1989.

      2.   They (work) ____________ for this factory for 20 years.

      3.   He (read) ____________ this novel three times.

      4.   Hoa and I (know) ____________ each other since we were at the same class.

      5.   I (not see) ____________ her since last month.

      6.   I (not work) ____________ today.

      7.   Nam (not do) ____________ his homework yet

      8.   I (lose) ____________ my pen. Can I borrow yours, please?

      9.   My father (buy) ____________ an expensive new car.

      10. A: I (reserve) ____________ a room here for tonight.

            B: Yes, madam, what’s your name, please?

      11. Peter and his brother (learn)           ____________ English for three years.

      12. Mr. Green (play) ____________ chess since eight o’clock.

      13. It (not rain) ____________ since last week.

      14. We (not see) ____________ our new teacher yet.

      15. I (study) ____________ very hard for this examination