Fill in the blank with the correct preposition: "We've been working on this project _______ Monday."

Identify the correct passive voice construction: "The novel _______ by a famous author."

Fill in the blank with the correct word: "Neither of the answers _______ correct."

Select the appropriate comparative form: "This math problem is _______ than the last one."

i wanted to go to Paris, but it ______ too expensive.

She was _______ the piano when the guests arrived.