After the trainer was sure that the whale could look after itself, he _______ it into the sea.

 Though ________ in San Francisco, Dave Mitchell had always preferred to record the plain facts of small-town life.

 All of us still remember the terrible tsunami that _____ the areas in the southeast of Asia in 2004.

3.As the years passed， many occasions―birthdays， awards， graduations ____ with Dad’s flowers. 

Tom _______ the TV set for $500，which was much cheaper than he had expected．