She used to be a prostitute, but now she has started a new life.

Will you marry me?

"Do you want to have a meal? Take a bath? Or choose me?" she said jokingly.

He was hiding the fact that he was an illegitimate child.

He threw the wastepaper into the trash can.

This creeper has covered the entire garden.

Lithium aluminium hydride is necessary for this chemical reaction.

The pH of this liquid is 7.

Hydrocyanic acid is a very dangerous chemical.

It suddenly started raining.