141.Pierre and I did have a very good time at the ball. But that was the last moment of happiness in our lives.
142.On our way home that night I looked down and saw that the necklace was not around my neck any more.
143.If we work together, we might come up with a very good story.
144.The student is on her way to school and she meets a girl that looks exactly like her.
145.IN the 18th century, Benjamin Franklin conducted a number experiments in which he showed what electricity is.
146.Having realized that I could use a kite to attract lightning, I decided to do an experiment.
147.When the first thunderstorm came, I took my condenser to a shed in the fields where I could do my experiment.
148.Tie the corners of the handkerchief to the points of the cross, and you will have a nice strong kite.
149.This ribbon, which must not get wet, will protect you from the electricity.
150.British law says that every new drug must be tested on at least two different kinks of animals, such as mice or dogs.
151.Scientists say that if a medicine works with animals, there is a very high chance that it also works with people.
152.There is no doubt that 100 years ago animal testing was cruel but today animals in experiments are very well taken care of.
153.It has often been said that life is difficult as it is. For women it sometimes twice as difficult.
154.On the third day I was struggling through stormy weather and during the next week the wind grew stronger and I found myself spending a whole day in my tent.
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