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thì hiện tại đơn

4. They                a computer game. (play)

5. You                  your homework. (do)

6. Look! The girls                    in the schoolyard. (skip)

7. Ssh! They                      in the library. (study)

8.Listen! Someone                   at the door. (knock)

9.he                      with his relatives in Ho Chi Minh city at the moment.(stay)

10. Who you                      to on the phone now, Minh?(talk)

11. Look! Jane                          the guitar.(play)

12.. I                           to her at present.(not talk)