3, We don't have to/don't need to change the dates of our trip.( need và have to viết lại với necessary)

4, Would you like me to show you how to use that?( would like=want:muốn)

5, I spent 2 hours walking to her village. ( spent time doing smt=took sb time to do smt)

6,The Museum of Ethnology is visited by millions of tourists every year. ( bị động hiện tại đơn,tobe+ved/v3+by sb)

3. We don't need to change the dates of our trip

4. Would you like me to  show you how to use this?

5. I spent two hours walking to her village

6. The Museum of Ethnology is visited by milions of tourists every year