The company __________(employ) more than 50 IT engineers since last year. (2013, 6. B)
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A water power station __________ (build) in this area several years ago.(2012,12 B)
Up till now, he ____________ (work) on the software design for 10 years. (2012,12 B)
The Prize in Economics ________ (establish) in 1968, that is, more than half a century ago.(2014,6.B)
Once we have received the goods back from you, we _________(give) you a refund for the cost of the product. (2014,12. A)