Karaoke, which was invented by the Japan
问题:
Karaoke, which was invented by the Japanese, ______ both wonders and problems.
A.has been produced
B.was produced
C.produced
D.has produced
Karaoke, which was invented by the Japanese, ______ both wonders and problems.
A.has been produced
B.was produced
C.produced
D.has produced