He knew that cholera would never be controlled _____ its cause was found.
A. till B. still C. until D. kill
_____ at the news that she would have a _____ experience, the girl couldn’t help jumping.
A. Thrilled; thrilled B. Thrilling; thrilling
C. Thrilling; thrilled D. Thrilled; thrilling
_____ the woman entered the office, Tom’s eyes lit up.
A. Immediately B. Before C. For D. With
Look! The road ____________
A. is repaired B. was repaired C. is being repaired D. was repairing
The primary purpose is to _____ those achievements in biological research _____ the public.
A. make; known by B. make; known to C. make; know to D. make; knowing by
____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.
A. A; a B. The; / C. /; the D. A; the
