The Greenwich Mean Time was set up in 1884.A．YB．NC．NG

Lisa Perez was always optimistic during the period of her unemployment.A．YB．NC．NG

Time is the greatest discovery in the history of human beings.A．YB．NC．NG

Today beer is the drink of the working man, which was not the case before.A．YB．NC．NG

Euro is the second largest currency in the world today.A．YB．NC．NG

Some scientists set up domes in the Polar Regions.A．YB．NC．NG

The young man was very proficient at operating computer.A．YB．NC．NG