—Have you nearly finished?— ______, we have just begun.
Visitors________not to touch the exhibits.
It is known to all that________you exercise regularly, you won't keep good health.
—What would you do if it________tomorrow?—We have to carry it on, since we've got everything ready.
We all know how difficult it is for all of us to eat better, exercise more, and sleep enough________we know we should.
________,I have never seen anyone who's as capable as John.