I. Using the Present Perfect, place 'just' correctly:
Tim has just seen a ghost in the attic window!
I have just finished operating on Gary.
The doctor has just bought a new sports car.
The twins have just broken a vase while playing football in the house.
Have you just eaten dinner?
Has he just baked some fresh bread?
J. Decide if you should use 'already / yet' then place the adverb correctly in the sentences:
Jonathon has already looked at his email.
Sue hasn't arrived on the plane from Madrid yet.
They have already booked a trip to Cancun.
Have you already invited your friends to the concert?
I've already dialed 911. The Police will arrive soon.
Has the school already called the fire station? No, they haven't called them yet.
Melanie has already booked tickets to the tennis match.
K. Complete the sentences with 'since / for':
Frank said, "I haven't seen you for three years."
Sheila hasn't read any books since January.
Edward has known Marjorie for two years.
Mr. and Mrs. Nelson haven't run for three hours.
This girl hasn't said a word since nine o'clock.
The telephone has rung for two minutes.
The cat hasn't eaten anything since Sunday.