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Daniel: His public speaking skills improved a lot.

Hannah: He devoted himself _______ his public speaking skills.

Researchers and scientists have ________ around the world recently.

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Mason: Do you have any requirements for the bride and bridesmaid’s looks?

Isabella: Both the bride and bridesmaid’s looks should work hand _______ hand to complement each other.

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Emma: Do you know how Coca Cola was invented?

Jack: Yes. John first tried to cure headaches with a _______ of cola leaves and cola nuts.

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Tom: They said that we could observe something special in the sky that night.

Lucy: Very few lucky observers could witness the most spectacular _______ shower in recorded history.

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Sophia: It is believed that low-fat biscuits are a healthy _______ to cakes.

David: Yes, you can buy low-fat biscuits for your kids instead of traditional biscuits.

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Ethan: Why is the bowl removable?

Chloe: The bowl is removable _______ cleaning.

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Liam: Did you hear any news about Edward?

Mia: After holding _______ jobs in different states, he settled in Oregon and opened a law office in Portland.