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