Give the plural of the nounsManPlaceDoctorChildShipCityMouseToothPolicemanWomanSheepKeyNurseDiarySisterGuyKnifeComplete the sentences, using the verb "to be"1) Their sister ... a vet2) Mike ... a driver3) They ... techers4) ... we happy?5) You ... very clever6) This shop ... very expensive7) ... he a clerk?8) It ... a post-officeUse the right article "a" or "an" with thefollowing words___ street___ brother___ car___ airplane___ driver___ clerk___ exercise___ university___ address