早上喝一杯咖啡对我来说很正常。

It's ___normal for me to have a cup of coffee in the morning.

体检报告显示他的各项指标都很正常。

The medical checkup showed all his indicators were ___normal.

这种溶液的pH值在7左右是正常的。

A pH level around 7 is considered ___normal for this solution.

建筑师确保墙壁与地板垂直。

The architect made sure the wall was ___perpendicular to the floor.