Fill in the blank with the correct tense form of the verbs in blankets

Fill in the blank with the correct tense form of the verbs in blankets:
             Dear John,
       Greetings from Nha Trang. We (have) a wonderful time here. We (arrive) here early this morning when there (not be) many people on the beach. The water (not be) too cold so my younger brother (insist) on playing some water games. Then at 8.00, mom (call) us in for breakfast, which (taste) really delicious. And now, at 12:00, mom and dad (take) a rest, my brothers (build) sand castle and I (write) this postcard to you. There are many other interesting things but I guess I will tell you later when I come back
                                                                                                                                                Love,
                                                                                                                                               Susan


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