Sally's been cooking all afternoon. She (prepare) for the party since lunchtime.
has been preparing
I/ peel/ potatoes (negative)
I haven't been peeling potatoes.
We (try) to contact you all day to tell you that you have won a prize.
have been trying
Ben is tired because he (paint) his room.
has been painting
The earth (get) warmer.
has been getting
I (not read) books this summer.
haven't been reading
Emma is tired. She (tidy) her room all morning.
has been tidying
My son (stay) up late a lot recently- I'm rather worried.
has been staying
Why is the kitchen in a mess? - Because Alan (make) a cake.
has been making
I (wait) for you to call.
have been waiting
The students (not do) exams all morning.
haven't been doing