A number of multinational enterprises taking advantage of lower wages and labour standards abroad ___________ recently ___________ of practising unfair competition. 2.Arnontov's last painting, Crescendo, ___________ at auction tomorrow. Its value ___________ at $1m-$1.5m. 3.Currently seven of the UK's airports ___________ by a company called the British Airports Authority. 4.Google ___________ by Larry Page and Sergey Brin in 1998. 5. Liquid petroleum gas, which ___________ also ___________ as propane, is essentially for domestic users who not ___________ with energy through pipes, for example because they live in remote areas. 6. There are rumours of a takeover. Apparently, the matter ___________ currently ___________ at the highest ___________.