There is a vacant seat in the theater.

The vaccine is a preventive measure against infectious diseases.

I received a beautiful Valentine card from my secret admirer.

The argument presented in the paper is valid.

The value of hard work cannot be underestimated.

The magician made the rabbit vanish into thin air.

Her vanity knows no bounds.

The variation in the color patterns of birds helps them [[blend into]] their environment, making it difficult for predators to spot them.

There are varied options to choose from.

He started his own venture and became a successful entrepreneur.