Walking with my mother __________ my happiest time.
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Here _______ a book and two pens on the table.
A. am
B. is
C. are
D. be
Either you or Marry often _______ the research.
A. do
B. does
C. did
D. done
I wonder whether there is any _______ between these two projects.
A. different
B. difference
C. differences
D. differently
The fish smells________. You’d better throw it away.
A. wonderfully
B. wonderful
C. bad
D. badly