`4`.Tom has set up this restaurant for nearly three years

`->` Thì HTHT : S + have / has + VpII ( `4 - 6` )

`=>` He , She , It `+` has ( `4 , 6` )

`->` For + Time : Bao lâu ( `4 , 6` )

`->` set up ( v ) : thành lập

`5`.Scientists have fought against AIDS since `1980`

`=>` I , You , We , They `+` have

`->` Since + Timeline : Từ khi nào

`6`.She has worked as a book keeper for this company for `5` years

`\text{# TF}`