[ Mixed General Quiz ]

Scientists finally _____ find a cure for the diseases after years of research.

A. Managed to
B. Can
C. Could

Select your answer:

Random Topics:
Cleanup vs. Clean UpRegular vs. Irregular VerbCountable Noun

Next quiz: Grammar

Every four years, the Olympic cauldron ___ at the opening ceremony of the Olympic games.
a. has lit
b. is lit
c. is lighting

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