—I’m going to have lunch. Do you mind talking about your plan ____ lunch?—All right. I’ll wait here in the office.
—Don't you believe me? —________, I'll believe ________ you say.
The reform has changed the whole nation. It cannot remain ________ it used to be.
Evidence has been piled up ________ drinking water after getting up in the morning contributes to one's health.
It is usually thought ________ a little child says is truth.
The warning we were given as children ________ eating fast will make you fat, may in fact, have a scientific explanation.