The lights in that office building ________ on and off all evening. (GO)
have been going
I can't find my keys. I think I _______________ them. (LOSE)
have lost
They __________ six countries so far. (SEE)
have seen
__________ an operation? (YOU / EVER HAVE)
Have you ever had
My uncle __________ around the USA for six months. (TRAVEL)
has been travelling
He __________ Martha for long. They met 2 months ago, in school. (NOT KNOW)
hasn't known
Mary isn't here because she _______________ shopping with Sue. (GO)
has gone
Why are your eyes so red? ________ (YOU CRY)?
Have you been crying
It __________ for many days. I wonder when it will stop raining. (RAIN)
has been raining
My neighbours ________ a nice cabin in the mountains. (BUILD)
have built
I'm sorry I'm covered in mud - I __________ in the garden all morning. (WORK)
have been working
Jim __________ tennis since he was six. (PLAY)
has been playing
How long _____ the flu? (YOU /HAVE)
have you had
He is completely exhausted. He __________ for a few hours. (CLIMB)
has been climbing
How long _____ to play the piano? (YOU LEARN)
have you been learning