1. Измените предложения согласно предложенной модели.

Model: I am writing a letter.
I have written a letter.

1. Contractors are signing the documents.
2. Partners are making a contract.
3. Detectives are collecting evidence.
4. I am tracking a killer.
5. A few men are hijacking the car.

2. В следующих предложениях употребите одно из времен, подходящих по смыслу: Present Simple, Present Progressive или Present Perfect.

1. I (to study) economics and law.
2. He (to learn) already five hundred words.
3. My friend (to speak) English fluently.
4. Where is Peter? – He (to patrol) streets.
5. A robber just (to enter) the bank.

3. Раскройте скобки и употребите нужное время: Present Perfect или Past Simple.

1. I never (see) him before.
2. The students of our group (to take) an exam yesterday.
3. No money (to deliver) to any banks in Baku today.
4. John (dictate) a few letters to his secretary yesterday morning.