No one has _____ been able to trace the author of the poem.
The weather that day may not be as good as expected, in case we will have to put off the event.
I your trying to earn some money, but please don’t neglect your studies.
As we know, the Chinese government will devote more efforts intellectual property rights.
I want an assistant with little knowledge of French and experience of office routine.
This restaurant sits on the 35th floor of the building. You can get good view of the city, enjoy good dishes and have pleasant time in its KTV rooms.