Вариант 4

When I came into the room, my computer was on. It worried me since I (20)  switching it on. I looked around – there (21)  nobody in my room and everything was in its usual place. Suddenly I (22) – the book had gone! I had left it on the table but it wasn’t there any more. I checked the window – it (23) . That meant that someone had come into the room through the door. My (24)  impulse was to call the police but I called Jim instead. “What (25) Jim sounded sleepy. I explained that someone (26) the book. “Oh, no!” Jim sounded unhappy. “Do you have any idea how valuable it is?” “There’s another thing I (27) understand,” I interrupted Jim. “My computer’s on but I always switch it off before leaving home.” “Ok, stay at home. I’ll be at (28) place in half an hour,” he said and the phone went dead.