Unit 5 Signs 习题2一、单项选择。1. -_does it mean?-It means you cant park here.A.WhereB.WhatC.WhenD.Who2.- What does it mean?- It the floor is wet.A.meansB.meanC.meantD.meaning3.-_does this sign mean?-It means you cant park here.A.WhenB.WhatC.WhatsD.Where4. - Whatdoes it mean? - It means you cant litter here. Which one is correct?A.B.C.5. -_can we put it?-We can put it in the park.A.WhenB.HowC.WhoD.Where二、改错。1. What do it mean?2. Does you want some juice?3. You cant take your juice on the shop.4. It mean you cant smoking here.