I_____to be out when you called me this morning. [ ]

Don’t smoke any more. It’s bad for your health.— I am trying to . It’s really hard , you know.

Come onI have a gift for you— How nice of youI never ____ you _______ me a gift

Joining the company as a clerk (职员), he got rapid promotion (晋升), and ______ working as a manager.

few years, the coal workers theirlungs X-rayed to ensure their health.