Вживання в реченні займенника it та займенника it з дієсловом to be

Complete the sentences with it or it`s

1 Let`s go home, it`s / it raining.

2.   I can`t buy that video game. Its/ it too expensive.

3.   We are wearing hats and gloves because it / it`s cold today.

4.I have a digital watch, but I don`t know how to use it`s/ it.

5.   I can`t do this homework. It`s /it isn`t easy.

6.   Don`t sit at that table. It/ it`s dirty.

7.   It/ it`s snowing! Let`s make a snowman!