[ Grammar ]
By 2050 scientists ______________ a cure for cancer
A. Will be found
B. Will be founding
C. Will have found
D. Will have founding

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Comparisons › ViewOf the three courses I did, this one is____________ interesting
A. the hardest and more
B. harder but more
C. the harder but more
D. the hardest but most
Grammar › View
Juan is a _______noun.
A. common
B. proper