[ Grammar ]
You ___ some exercise every day.
A. must doing
B. must to do
C. must do
D. must did
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Grammar › ViewTexting can signal your unavailability to _____ people in the same way that wearing sunglasses and headphones does.
A. other
B. another
C. every
D. one
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Many people voluntarily offer care for ________ elderly and ________ disabled.
A. the / the
B. an / a
C. an / the
D. Ø / Ø