In 1492，Columbus ________ on one of the Bahama islands，but he mistook it for an island off India.

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

Many single parents      with the dilemma of dividing time between work and children。

When the young man was shown the evidence, he _______ and told everything he had done to the police. 

I ________ in London for many years，but I've never regretted my final decision to move back to China.