[ Modal Verb ]
A: How did the robbers get in?
B: We don’t know yet. The old woman …….. to lock the door.
A. might forget
B. could forget
C. might have forgotten
D. must have forgotten
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A. adverb
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Shakespeare died _____ 1616.
A. IN
B. ON
C. AT
D. [ – ]
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A. big
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C. the bigest
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_______ friend was talking with them.
A. Their
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