I am very angry because they often laugh at ________.
A. Mary and I
B. Mary and me
C. I and Mary
D. me and Mary
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The air in Tibet is cleaner than ________ in our city.
A. one
B. the one
C. that
D. those
________ has received an invitation to his birthday party.
A. Everyone of us
B. Every one of us
C. Everybody of us
D. We everyone
I, who ________ your best friend, will help you at any time.
A. is
B. am
C. are
D. be
Since you have lost your watch, I’ll give you ________.
A. a one
B. one
C. the one
D. mine one
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