Did you remember to ask the architect what building materials the interior walls ... made from? (had / were / did / be)

Unfortunately, the company was forced to pay compensation for the expensive vase that was ... during the company outing at the museum. (disappeared / broken / collapsed / fallen over)

If you see any customers who look as if they are not ... then it is your responsibility to go and ask them if they need any assistance. (be served / been served / have been served / being served)

The company's stock price has been significantly affected ... the poor figures announced in today's emergency shareholder meeting. (in / with / by / from)

Does anyone remember when exactly this air conditioning system ..., because it is not working properly and it could still be under warranty. (was installed / has been installed / is being installed / be installed)

The latest report compiled by the overseas marketing division found that many errors of judgement ... by senior management. (had made / be made / were making / had been made)

Although they were don only a week ago, these windows already need ... again because of all the dust from the construction site across the street. (cleaned / cleaning / to be clean / have cleaned)

The new digital scanner has stopped working again, even though we only ... a week ago. (had repaired it / had it repaired / have been repairing it / were repairing it)

It seems that news of our plans to withdraw from the Asian market have ... to the press by someone within the company. (been leaking / be leaked / leaking / been leaked)

Beginning next month, every laboratory worker in our research facility ... required to wear an ID badge at work. (is being / has been / will be / be)