Bottles of medicine must have childproof caps ______ children think medicine is candy and poison themselves.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
The packages___________________ so that it would be easier to carry them.
Regular exercise and good diet will bring______fitness and health.
_______ has been a topic of continual geological research.
Tom: "___________________ " Mike: "I won't say no!"
Long ago, women were_________to vote in political elections.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
Only one of our gifted students______to participate in the final competition.
______ his brother, Mike is active and friendly.