15. Mom: Peter, be sure to finish your school report before you go to bed.
Peter: OK, Mom, I ___.
(A) am
(B) do
(C) have
(D) will
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統計: A(6), B(6), C(2), D(62), E(0) #2344958
統計: A(6), B(6), C(2), D(62), E(0) #2344958