Choose the correct variant.

Liz and I are good friends. We ____ each other for four years.
1. know
2. have known
Sarah is very tired. She ____ hard all day.
1. has been working
2. is working
“Where is John?” “He's upstairs. He ____ his homework.”
1. does
2. is doing
I can't go to the party on Saturday. I ____ for Spain on Friday night.
1. am leaving
2. have been leaving
Jane ____ cleaning her room, and now she is going out with her friends.
1. has finished
2. is finishing
I didn't recognize Tom. He ____ so different in a suit.
1. looks
2. is looking
I don't need to wash my car. Jim ____ it for me already.
1. washes
2. has washed
Ian ____ to his boss for an hour now.
1. has bean talking
2. is talking
Claire's train ____ at 3 o'clock. I must go and meet her at the station.
1. arrives
2. had arrived
“Would you like to borrow this book?” “No, thanks. I ____ it before.”
1. have read
2. have been reading
“Where ____?” “To the cinema. Would you Ike to come with me?”
1. are you going
2. do you go
Have you seen my bag? I am ____ for it all morning.
1. searching
2. have been searching
“Is Colin here?” “I don't know. I ____ him all day.”
1. haven't seen
2. haven't been seeing
Sophie is very Clever. She ____ seven different languages.
1. is speaking
2. speaks
We ____ house tomorrow. Everything is packed.
1. are moving
2. have moved