_______ is known to all is _______ Diaoyu Island is part of China.
- How long did David work here?- For half a year, he didn't leave much_______on us.
It remains to be seen________North Korea will remain stable under its new young leader.
How did you manage to get to the school on time_________you missed the school bus?
Readers are required to________the rules of the library and mind their manners.
Everything seems to be going______for the first two weeks after I moved to London.