Tamiko is my best friend.

Taichi is my best friend.

Kota, have you finished your homework for today?

Shota is my best friend.

I bought a new study aid for my math exam.

He started a new business, but as the proverb 'the road to happiness is strewn with setbacks' suggests, he is facing many difficulties.

He is deeply studying the teachings of Prajnaparamita.

Myriapods belong to the same Arthropoda phylum as insects.

He never misses his multifidus muscle training every day.

He faced many difficulties before he succeeded, but as they say, the road to happiness is strewn with setbacks.