[ Grammar ]
The __________ scientist continued his research despite the challenges.
A. passionate
B. determined
C. primitive
D. persistent
Select your answer:
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Grammar › ViewComplete each sentence with the correct comparative or superlative form of the word in brackets.
Yellow is a bright colour, but orange is an even _______ colour.
A. brighter
B. brighter than
C. the brightest
D. brightest
Idioms › View
To “zero in on” is to ___ something.
a. aim for
b. adjust
c. alter