[ Grammar ]
You ___ some exercise every day.
A. must doing
B. must to do
C. must do
D. must did

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Progressive Perfect and Simple Verb Tenses › ViewThe present perfect progressive tense is formed by….
A. had been + present participle
B. have/has + present participle
C. have/has been + present participle
D. have/has been + past participle
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I’m sure I ……. him two years ago.
A. Am seeing
B. Have seen
C. Have been seeing
D. Saw
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
