What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.
Tom: "___________________ " Mike: "I won't say no!"
Only one of our gifted students______to participate in the final competition.
We must push the piano to the corner of the hall to_____________________ our party tonight.
She asked me______I was looking at.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
_______ has been a topic of continual geological research.
The word "allocated" in the passage mostly means "______".
Michael looked deeply hurt and surprised when_____________________ .
The phrase "keeps sellers on their toes" in the passage mostly means "______".
The packages___________________ so that it would be easier to carry them.