1 Put the verbs in brackets in the correct form.
Generally (1) __________ (think) of as a place to store things you don’t want to see, warehouses (2) __________ (not have) a glamorous image. However, in today’s competitive manufacturing and business environment, (3) __________ (run) the warehouse efficiently is vital to a company’s success. (4) __________ (create) a critical link between a manufacturing plant and the external world, the warehouse (5) __________ (affect) the performance of the entire manufacturing and logistics system.
(6) __________ (finally install) a new system two months ago, our new warehouse
(7) __________ (locate) near the airport, is now proving excellent, already
(8) __________ (lower) costs by 20% and (9) __________ (improve) efficiency by 15%. In fact it (10) __________ (achieve) such excellent results, we are planning to install the same system in the other warehouses.

2 Complete the paragraph with a word or phrase from the box.

necessary/obliged/should have used/had/didn’t have

Unfortunately we were (11) __________ to make several modifications to the materials used in our new product as a result of customer feedback. We (12) __________ to do this as quickly as possible to protect our reputation. We (13) __________ a different material from the start, but we were hoping to cut costs by using older technology. We found it (14) __________ to source the material from a new supplier, but luckily we (15) __________ to make any serious design changes, which was good.

3 Choose the correct option.
21There was a possible ice storage/blockage in the pitot tube.
22The system is still under investigation/warranty so they have to repair it for free.
23A lot of cracks/debris lay on the ground after the explosion.
24Luckily there were no failures/fatalities in the explosion, just minor injuries such as cuts and abrasions.
25Everyone was safely rescued/prevented from the flood.
26Unfortunately several of the bolts showed signs of metal fatality/fatigue.
27A jet of water shot/ran up the roof.
28I think we should override the system. How does that think/sound?
29Ice on the sensor had caused a fake/false reading on the airspeed indicator.
30You need to be assertive/accusing when speaking to superiors, but not rude.