Char is my favorite character.

Just because the exam is coming up, there's no need to be in a hurry.

Education about sex is very important.

The sourness of this lemon is very strong.

He is majoring in chemistry at university.

I love grapes.

This grape is very sweet.

He is an expert in chemistry.

He received the letter challenging him to a duel and began preparing for the duel.

This lemon is sour.