Winter holidays are shorter than summer ones. They begin at the end of December and last about two weeks. It is so nice to have a rest from school.
During winter holidays we celebrate the New Year’s Eve and Christmas. There are New Year parties for children at schools and theatres. Cinemas show children films and cartoons.
It is usually very cold in winter, but frost and snow can’t keep children indoors. It’s so great to go skiing down a hill. Boys like to play hockey on the ice. Many children go to the skating-rinks to skate. Small children play snowballs and make snowmen, or ride on the sledges happily.
When the weather is bad, I stay at home and watch TV. There is always something interesting on during winter holidays. Sometimes my friends come to see me and we play computer games or listen to music. There is also more time for reading, drawing, making model planes and other hobbies.
Holidays pass quickly and soon it’s time to go to school again.Вот я запарилась
Don't tell anyone what I told you. We were not (weren't) supposed to know.
He says we can look at the pictures but we are not (aren't) supposed to touch them.
Customers are supposed to have these weighed in the "fruit and vegetables" department, sir.
I'm going to wash the car now. I was supposed to do it yesterday but I didn't feel like it.
I'd better hurry up; I am (I'm) supposed to meet Helen at eleven o'clock.
В последнем предложении есть два варианта. Первый - тот, что я написала. Он правильный, если 11-ти ещё нет, но скоро будет, и ему/ей надо поторопиться. Второй - I was supposed to meet Helen at eleven o'lock. Этот правильный, если уже 11 или чуть больше, и ему/ей надо поторопиться, так как уже и так больше условленного времени , а он/она ещё не на месте. Разницу я выделила жирным шрифтом. Решать, как писать, тебе.