Exercise 1

Choose the most suitable verb tenses to complete the sentences below.

A: "I'm looking for Dave. him?"

B: "He's ill. He five minutes ago."

A: "I on the 2 p.m. train."

B: "Please call me as soon as you ."

By the time he was twenty, he ten tournaments.

A: "Patrick! Hi! What in York?"

B: "Hi! I . I'm here with one of my colleagues, who a presentation at the University this afternoon."

A: "How long each other?"

B: "We for 10 months."

When I around, the bike . It wasn't there anymore.

We for over an hour when John just called and said, "Sorry guys, I a problem. I can't come." And he .

I'm totally stressed out now, but this time next week I a mojito on a beach in Ibiza.

A: "Is it true? to Erika?"

B: "Yes, I so sure about anything in my life."

It is estimated that by the year 2025, today's world population of 5.8 billion to 8.3 billion and most of them in cities.