Вставьте there’s или it’s. 1. Don’t be upset about being late. … another advanced computer class today at four o’clock.

1. Don’t be upset about being late. There\'s another advanced computer class today at four o’clock. 2. It\'s not easy to cook dinner for the entire family. 3. It\'s nice weather. I decided to forget my problems and just enjoy this beautiful spring day. 4. In many apartment and office buildings in the U. S. There\'s no 13th floor. The 14th floor follows the 12th.