1. Измените предложения согласно предложенной модели. Model: I am writing a letter. I have written a letter. 1. Contractors

I. 1. Contractors are signing the documents. Contractors have signed the documents. 2. Partners are making a contract. Partners have made a contract. 3. Detectives are collecting evidence. Detectives have collected evidence. 4. I am tracking a killer. I have tracked a killer. 5. A few men are hijacking the car. A few men have hijacked the car. II. 1. I study economics and law. 2. He has already learnt five hundred words. 3. My friend speaks English fluently. 4. Where is Peter? – He is patrolling streets. 5. A robber has just entered the bank. III. 1. I have never seen him before. 2. The students of our group took an exam yesterday. 3. No money has delivered to any banks in Baku today. 4. John dictated a few letters to his secretary yesterday morning.