Karaoke, which was invented by the Japanese, ______ both wonders and problems.
| A．has been produced | B．was produced | C．produced | D．has produced |
相关试题
A poet and artist _____ coming to speak to us about Chinese literature and painting t
omorrow afternoon.
| A．is | B．are | C．was | D．were |
The father as well as his three children _____ skating on the frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
was most important to her, she
told me, was her family.
| A．It | B．This | C．What | D．As |
According to a recent U.S. survey, children spent up to 25 hours a week ______ TV.
| A．to watch | B．to watching | C．watching | D．watch |
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