Yesterday， from 11a．m． until 8p．m．， all the electricity was off in our city． The lights went out． The underground stopped． No one expected it． It was Saturday． Many people were at home， in the streets or in department stores． Many other people were travelling by underground． At first， people were not worried． "Everything will be fine in a few minutes，" they thought． However， soon people became worried． People at home and in department stores came out onto the streets． The streets became more and more crowded． People on the underground began to phone their family and friends． The electricity did not come back， even after it got dark． People became more and more worried． After the Sun set， people had to light candles in their homes so they could see each other．


How long was the electricity off in writer's city？ ______

At first， people were not worried， were they？ ______

Why did people have to light candles in their homes？ ______

When did this happen， on Saturday or Sunday？ ______

What do you think of electricity in our life？ ______