I _____ (lose) my keys! I can't get into my house! Help!
have lost
I _____ (see) John last week at the soccer game.
saw
I _____ (eat) a lemon before.
have eaten
I _____ (live) in NYC before.
have lived
She _____ (study) since early in the morning.
has been studying
He _____ (study) right now.
is studying
They fell asleep at 8pm. It's 11pm now. They ____ (sleep) for a few hours.
have been sleeping
He _____ (read) Harry Potter right now.
is reading
I _____ (know) Julie for ten years. We are still good friends.
have known
The baby _____ (eat) a lemon last night.
ate
They _____ (already go) to bed when the thunderstorm started.
had already gone
He _____ (read) this book since last month.
has been reading
I _____ (lose) my keys yesterday. It was terrible!
lost
The children ____ (sleep) over at each others houses many times.
have slept over
I _____ (already read) that book when we started reading it in class.
had already read
I _____ (live) in Iceland in 2010.
lived