Read the situations and complete the sentences. 1. The rain started two hours ago. It’s still raining now.
It … has been raining … for two hours.
2. We started waiting for the bus 20 minutes ago. We’re still waiting now.
We ……………………………………………… for 20 minutes.
3. The company is spending $5 million on developing the software before it goes on sale.
By the time the software goes on sale, the company …
4. I’m going to paint the front door today. I’ll finish it before you get back.
When you get back, I …