[ a, an, the, Zero Article ]
Mandela was imprisoned for ___ nearly 30 years for his anti-apartheid activities.
a. a
b. an
c. the
d. X [Nothing]

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Subject Verb Agreement › ViewWhat (is, are) the problems we need to solve right now?
A. is
B. are
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In which sentence is the word “mother” used as a proper noun?
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Grammar › ViewThe teacher _____ give homework on weekends.
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B. Does
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Tenses › View
We didn’t recognize the man because he _____ sunglasses.
A. has worn
B. is wearing
C. was wearing