`1`.I have lived here for three months

`->` Thì HTHT : S + have / has + VpII

`=>` He , She , It `+` has

`->` For + Time : Bao lâu

`2`.Sophie is going shopping at the moment

`->` Thì HTTD : S + is / am / are + V-ing

`=>` He , She , It `+` is

`->` `DHNB` : at the moment

`->` go shopping : đi mua sắm

`3`.It's in March since I last had French lessons 

`->` It + is / has been + timeline + since + S + last + Ved / V2

`=>` Đã bao lâu kể từ khi lần cuối làm gì

`4`.While we were having lunch , someone rang

`->` While + S + was / were + V-ing , S + Ved / V2

`=>` Dùng để diễn tả hành động đang xảy ra thì hành động khác xen vào

`5`.Paul has just left the room

`->` Thì HTHT : S + have / has + VpII

`=>` He , She , It `+` has

`->` `DHNB` : just

`\text{# TF}`

Answer

$1.$ I have lived here for three months.

- Thì HTHT `( + )` S + have / has + V3 / PII

`->` DHNB `:` for three months - for + khoảng thời gian

`->` You / We / They / N số nhiều + have

$2.$ Sophie is going shopping at the moment.

- Thì HTTD `( + )` S + is / am / are + Ving 

`->` DHNB `:` at the moment

`->` He / She / It / N số ít + is

$3.$ It's in March since I last had French lessons.

- Thì HTHT `( + )` S + have / has + V3 / PII + since / for + timeline / time

`=` It's + time + since + mệnh đề QKĐ - S + V2 / V-ed

$4.$ While we were having lunch, someone rang.

`-` Cấu trúc `:` While + Mệnh đề QKTD, Mệnh đề QKĐ

`+` Mệnh đề QKTD `( + )` S + was / were + Ving

`+` Mệnh đề QKĐ `( + )` S + V2 / V-ed

`->` Diễn tả hành động đang xảy ra thì hành động QK khác xen ngang

$5.$ Paul has just left the room.

- Thì HTHT `( + )` S + have / has + V3 / PII

`->` DHNB `:` just

`->` He / She / It / N số ít + has

- leave - left - left