The time expression " lately" ........
Indicates finished time and it is used with past simple
Indicates unfinished time and it is used with the past simple
Indicates finished time and it is used with the present perfect
Indicates unfinished time and it is used with the present perfect
We use the present perfect with FOR AND SINCE for actions that are still happening now.
"My mum was making dinner and I was doing my homework " indicates......
Two simultaneous actions
Two consecutive actions
One action interrupting another one
A sentence which means the same as " I have been living in London for 2 years is......
I moved to London 2 years ago
I left London 2 years ago
I lived in London for 2 years
Complete I have .............. read 28 pages of the book
Yet
Ever
Since
Already
Never
Sam ...........(try) to change a light bulb when he ......(fall)
Tried/ fell
Was trying/ fell
Tried/ was falling
Was trying/ was falling
The word "While" introduces an action in progress