请问：careful的比较级是morecareful；还是morecarefully?

Question

请问：careful的比较级是more careful；还是more carefully?

Answer 1

此处应该用more careful,三种情况的示例如下：
You should handle it with care.
You should handle it with more care.
A careful handling will solve the problem.
A more careful handling will solve the problem.
You should handle it carefully.
You should handle it more carefully.
:D