Completar Frases Passive Voice in Present TenseVersión en línea Identify passive constructions in present tense. por LEE Tsz Wai 李祉蔚 1 in is to emphasize the action rather than the doer . In everyday English , the subject is often followed by the form 'is' and a past participle , as in 'The letter daily' or 'Newspapers by many people . ' When we describe routines , the agent can be omitted , and the sentence remains clear . Writers sometimes vary the structure to avoid repetition , but the passive form remains easy to understand in formal instructions and reports . 2 It is a busy Monday morning at Happy David Primary School . Every day , the school clean . The floors and the windows before the first bell rings . Today , there is a small problem . A mystery lunchbox is sitting alone on the principal ? s desk . It is clearly important because a search for its owner right away ! Notes about the missing lunch to every classroom door . The principal says , " This delicious - looking sandwich cannot go uneaten ! The correct owner must come forward . " She explains that all food at the school and should never be abandoned . 3 Yesterday , Class 6A went on a fun school trip . They visited the Mega - Cookie Factory . This factory is very famous because its cookies all over the country . During the tour , the students learned how the cookies . They saw that the flour with sugar and butter by a huge machine . After mixing , the cookie dough into perfect shapes . Next , the raw cookies in large ovens . At the end of the tour , a big box of warm cookies to the class as a gift . The students agreed that the cookies were delicious and the tour was very educational !