The first and most important instruction is to handle the sharp tools safely.

primarily
primary
prime
primitive

The primary instruction is to handle sharp tools safely.

the correct answer is "tan believes that nonstandard english can make family communication difficult". raising children across cultures can sometimes be challenging, especially when the values and expectations are from different cultures. this can make it difficult to feel a sense of belonging to any community.

irony  

i hope this you and have a good day

~ashbelle