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473.We've spent too much money recently.
Well，it isn't surprising. Our friend and relatives _____ around all the time.
A.are coming
B.had come
C.were coming
D.have been coming
474.I'm tired out.I _______ all afternoon and I don't seem to have finished anything.
A.shopped
B.have shopped
C.had shopped
D.have been shopping
