12. In addition to _____, the new secretary learned to answer phones and reject junk letters.
(A) make tea
(B) made tea
(C) have made tea
(D) making tea
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統計: A(59), B(13), C(9), D(253), E(0) #1835474
統計: A(59), B(13), C(9), D(253), E(0) #1835474