—Have a break,Amy.You _____________ playing the piano all the morning.
—OK,Mom.I will stop after this piece.
A.are practicing | B.have practiced |
C.have been practicing | D.practiced |
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—Have a break,Amy.You _____________ playing the piano all the morning.
—OK,Mom.I will stop after this piece.
A.are practicing | B.have practiced |
C.have been practicing | D.practiced |