Ten thousand dollars ___ a large sum.
A. is
B. have been
C. are
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We will go to the shop to buy some food. Both meat and fish ___ running out.
A. is
B. will
C.are
There is a picture ___ the wall.
A. on
B. in
C. of
There is a nail(钉子) ___ the wall.
A. on
B. in
C. of
There ___ some milk in the bottle.
A. is
B. are
C. be