In each mini-dialogue put one verb into the present perfect simple

In each mini-dialogue put one verb into the present perfect simple and the other into thepresent perfect continuous. Use contractions where possible.1 A: Whats the matter? You look worried!B: Yes, I am. I ve been looking at (look at) the contract in detail, and I ve noticed (notice) a lot ofpotential problems.2 A: I (call) Carol all day, but it goes straight to voicemail.B: I expect she (go) to Head Office.3 A: Tosca is coming to the Opera House. (you see) it?B: Not yet, but I (look forward) to it for ages.Shall we go together?4 A: How long (you produce)cars at this site?B: About four years. We(invest) around twenty million dollars in plantand machinery.