I ( write ) ............. an email to our suppliers when the computer screen (freeze) .......
When I (go) ..........into the boardroom, the CEO (sit) .......at the head of the table.
B1 - business unit 1,2,3,4 present simple/ present continuous past simple / past continuous
He ( live) ..... in the USA when he (meet) ............his business partner
I ( not send) the document because the scanner (not work)