Примеры:
The car is OK again now. I (repair) it.
The car is OK again now. I have repaired it.
My hands are very dirty. I (repair) the car for two hours.
My hands are very dirty. I have been repairing the car for two hours.
Решайте:
Tom started reading a book two hours ago. He (read) for two hours. *
Look! Somebody (break) that window. *
My brother is an actor. He (appear) in several films. *
I (know) him for 10 years. *
I (lose) my address book. *
I (read) the book you lent me, but I haven't finished it yet. It's very interesting. *
I (read) the book you lent me, so you can have it back now. *
Lisa (write) ten letters today. *
He (win) the national championship four times. *
She (read) 53 pages. *