But where the center would be is an open question.

And whether we can take off without more is also an open question.

Exactly who would support them today was still something of an open question.

But whether all the changes are for the better is an open question.

What, exactly, most of them may have heard is an open question.

Whether they can live with each other is an open question.

But whether he would be able to keep his party united in Government is an open question.

What China will do next is an open question in the administration.

Of course, whether these countries will go in their social and economic development is an open question.

How long the changes in behavior last, of course, is an open question.