How long does it take you to do the projects— It _________ the survey. I’m not sure whether the survey will last long.

It was several years ________ I realized ________ David had lied to me

See? The strange man I saw yesterday _____ around my house againShould I call the police？

_ the calculation is right, scientists can neverbe sure that they have included all variables and modeled themaccurately

Her brother was _____ by the army because of his bad eyesight