[ Modals ]
Complete the missing word. In the plains and grasslands of North America, we _____ not interfere with the habitat of the bison or they, too, will become extinct.
A. must
B. could
C. may
D. might
Select your answer:
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Grammar › ViewThe children usually ____ a sandcastle on the beach
A. build
B. are building
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I wish I _____ those words. But now it’s too late.
A. not having said
B. have never said
C. never said