Not until recent has interest in synthetic fuels been revived.
_______ has been a topic of continual geological research.
Only one of our gifted students______to participate in the final competition.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
Tom: "___________________ " Mike: "I won't say no!"
I am sorry I have no time at present to____________________ detail of our plan.
Long ago, women were_________to vote in political elections.
Regular exercise and good diet will bring______fitness and health.
According to critics of globalization, several developed countries have become rich because of
Supporters of free-market globalization point out that_____________________ .
______ his brother, Mike is active and friendly.