Complete the sentences. Use the present perfect continuous or the present continuous form of the verbs in brackets.
1. I'm busy right now. I'm working.. (work) on a Maths project.
2. It.... (rain) all week.
3. Where have you been? We.... (wait) for you since 9 o'clock!
4. The shop hasn't opened yet. I... (wait) in front of the door now.
5. Sarah can't sleep because the baby.... (cry).
6. I'm worried because the baby (cry) for over half an hour.
7. Timothy is very tired. He... (work) hard recently.​