A ping-pong ball and a tennis ball ___ under the bed.
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— Is this your ball, Nick?— Yes, ___.
A. this is
B. here is
C. it is
— ___ ?— They are fine, thank you.
A. How are you
B. How are your parents
C. What are they
The milk ___ in the box.
A. is
B. am
C.are
The child ___ an egg.
A. is
B. has
C.have
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