Все предложения, в которых ты видишь is/are + глагол с окончанием ing, являются в present continuous.
действия в этом времени происходят в данный момент, сейчас. в некоторых предложениях ты увидишь now, at the moment и похожие слова, и это будет означать, что предложения в present cont.
Her shirt isn't dirty. Isn't her shirt dirty?
Everyone needs to keep fit,but it is a hard work. I should admit that we must do all we can to be healthy. Now I'l tell you about some ways to keep fit.
I think,the main thing is sport. Doing exercises is a great way to make our bodies strong,fit and healthy. A lot of people are doing morning exercises,because it is a great way to awake completely.There many different kinds of sports and I can safely say you'll find the best for you!
The second thing is healthy food. You should eat regularly every day, not to eat to much before training and have a good breakfast.
Dear Santa Claus,
My naime is, Lena_. I am nine_. I can__read, write, sing, dance.
My behaviour is very good.
Can I have__a computer or a small puppy_for Christmas, please?
Merry Christmas and a Happy New Year!
With love,
Lena