Исправь и напиши правильные предложения:
1) There are eight in a week.
2) There are six colours in the rainbow.
3) There is one 0 in "ciassroom".
4) There are sixty copecksin a rouble.
5) There are four months in summer.
6) There are thirty days in January.
7) There are three bs in "biackboard"/

There are seven days in a week.

There are seven colours in the rainbow

(С 3 предложением не уверена) There is one 0 in classroom

There are one hundred kopecks in a rouble.

There are three months in summer

There are thirty-one days in January

There are three bs in blackboard

правильные  3-е  и   7-е