it"s c________to help others in our school

it"s c________to help others in our school
it"s c________to help others in our school

it"s c________to help others in our school
填common（常见的,普通的）
句子是：It's【common】to help others in our school.
翻译是：在我们学校帮助他人是很常见的
句型：it is +adj+(for/of sb)+to do sth：做某事（对某人来说）怎么样

common 普通的