Giúp em với ạ :(( Answer the questions 7.What does it name derive? ..................................................................................................................................... 18.Is Dalat an unpopular tourist destination? …………………………………………………………………………………………………………………………………………………………………….. 19.What are the famous sights? ……………………………………………………………………………………………………………………………………………………………………. V/ Do as directed in parentheses 20. I was very happy. I received your letter this morning ( Combine the sentences, using “ Adj+ to- infinitive” ) ->...................................................................................................................................… 21.People mix the small pieces with certain chemicals (change into Passive Voice) ->...............................................................................................................................… 22.The boy is my friend. He is living on Tran Hung Dao street ( combine the sentences, using “ Present Participle”) ->...................................................................................................................................… 23. May I smoke? -> Would .......................................................? 24.These madicines don’t cure a cold.(Change into passive). >…………………………………………………………………………………………………………