—We should adopt ________methods to deal with some incidents. You know,anything could occur in that situation.—I got it. Thank you for reminding me.
It is much easier to talk about social change than to ___ .
As far as we know, Tom spends at least as much time watching TV as he _.
This is a story completely_____ by him, so don’t rust him.
I can guess you were in a hurry. You _your sweater inside out.
Historical experience can ____ as a most important source of information.