33.It took one hour and a half to fly to Ho Chi Minh City.
34.It is 20 years since Tom and Mary moved to Paris.(S+Ved/V2+time ago=It is time+since +S+Ved/V2)
35.They invited him to go to the stadium the next day.(câu tường thuật)
36.They had better quit smoking.(should=had better)
37.Despite living in the city,my uncle always walks to work.(Although+mệnh đề,...=Despite+N/Ving,...)
38.If he practiced speaking English,he could speak it fluently.(điều kiện loại 2)
