It may not work out that one living in an English-speaking country will acquire the language ________.
There is one issue that stands out above all the rest, one every student is concerned about, _______ which class he may be from.
The pop star was asked many personal issues, surrounded by crowds of fans, so that his patience _______.
Only when our project has been approved of by the committee ______ to carry it out.
We are lucky to be among the generation of people who have ______ and experienced the great social changes in our country.
______ economic, political and cultural difference, China and America have decided to cooperate in dealing with global issues.